{"title":"Titanium Alloy","description":"","products":[{"product_id":"alfa-romeo-guilia-2-9t-catback-titanium-valved-sport-exhaust-system","title":"Alfa Romeo Guilia 2.9T catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Alfa Romeo Guilia 2.9T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Alfa Romeo Guilia 2.9T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49347755081987,"sku":"ARG-29T-Ti-VLV-CAT","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0009__11.jpg?v=1785383325"},{"product_id":"aston-martin-db9-v12-catback-titanium-valved-sport-exhaust-system","title":"Aston Martin DB9 V12 catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Aston Martin DB9 V12\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Aston Martin DB9 V12\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49347858006275,"sku":"AM-DB9-V12-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0010_IMG_0521.jpg?v=1785389960"},{"product_id":"aston-martin-dbx-707-4-0t-catback-titanium-valved-sport-exhaust-system","title":"Aston Martin DBX 707 4.0T catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAston Martin DBX 707 4.0\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Control: This system comes standard with a precision bracket designed to accommodate your vehicle's original OEM valve motor. No aftermarket remote control is needed — the valve operates directly through your car's factory ECU logic, automatically opening and closing based on RPM, throttle position, and drive mode.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eI. What Is OEM-Integrated Titanium Valved Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe HMD titanium valved exhaust is a plug-and-play catback exhaust designed for stock ECU integration. It mounts your original factory valve motor via a precision custom bracket, enabling fully automatic valve operation without aftermarket remotes or vacuum modifications. It retains factory intelligent logic while delivering true racing performance and premium titanium exhaust tone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSolves Common Traditional Exhaust Issues\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Chamber Exhaust: Retains low-end torque but restricts high-RPM power output\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight Pipe Exhaust: Boosts top-end power but sacrifices low-speed torque with loud drone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual-Mode Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium valved exhaust perfectly balances daily usability and racing performance. The closed valve maintains proper backpressure for stable low-speed torque and quiet cruising. When the ECU triggers valve opening under high engine load, full exhaust flow reduces backpressure to unlock maximum high-RPM power. Compared with stainless steel exhausts, titanium material delivers clearer, more penetrating and layered exhaust sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eII. Core Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Grade Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt with premium titanium alloy, this performance exhaust features ultra-light weight to reduce vehicle load, fast heat dissipation and excellent high-temperature resistance. It fully resists rust and corrosion, adapting to all weather and road conditions. Adopting dual-layer high-temperature tension welding, all weld seams are tight, firm and crack-proof for long-term stable use. Custom physical thermal coloring creates a unique personalized look, with a reliable service life of over 10 years.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFull OEM Intelligent Control\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStock Motor Fit: Direct fit factory valve motor, no extra wiring, 100% reversible\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eECU Auto Adjustment: Real-time valve switching based on throttle input, RPM, Comfort and Sport drive modes\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComplete Stock Function Retention: Preserves all original vehicle electronic settings\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEnhanced Sound \u0026amp; Power\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy’s superior acoustic conductivity produces a crisp, resonant and penetrating exhaust tone that steel exhausts cannot achieve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Valve (Daily Mode): 80–85dB smooth mellow sound, near-stock quiet level, zero drone for daily commute and highway travel\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOpen Valve (Sport Mode): Aggressive deep roar, instant throttle response and smoother high-RPM power delivery for track and spirited driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSimple Bolt-On Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePrecision OEM replacement design ensures perfect vehicle compatibility. No cutting, no welding, fully reversible bolt-on installation. The lightweight titanium structure lowers installation difficulty and avoids unnecessary vehicle weight gain after modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIII. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute \u0026amp; Highway Cruising\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Closed Valve: Quiet and stable output, comfortable for long-distance daily driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Mountain Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Open Valve: Releases full engine potential with aggressive penetrating exhaust sound and stable high-temperature performance\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNight \u0026amp; Residential Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComfort Mode Quiet Operation: Low noise to avoid disturbing neighborhoods\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \u0026amp; Enthusiast Meets\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSport Mode Open Valve: Stylish titanium thermal coloring plus resonant racing sound for outstanding modification appeal\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIV. Package List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models:\u003c\/span\u003e\u003cspan\u003eAston Martin DBX 707 4.0\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContact customer service to confirm vehicle fitment before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRacing Titanium Alloy Catback Exhaust (with OEM valve motor bracket) × 1\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFull Set of Mounting Hardware\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eV. Why Choose Our Titanium Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eDirect factory supply: Strict quality control and competitive factory price\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRich customization: Thermal color finishing and free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium material: Lightweight, heat-resistant, rust-proof and 10+ years lifespan\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIndustrial-grade dual-layer tension welding: Crack-proof, airtight and long-lasting\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional after-sales technical support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom OEM \u0026amp; ODM orders acceptable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVI. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor vehicle fitment check, custom colors and wholesale quotes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEmail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp \/ Kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49347932619011,"sku":"AM-DBX-40T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0002__7.jpg?v=1785393643"},{"product_id":"aston-martin-vantage-4-0t-v8-straight-catback-add-resonator-tube-titanium-sport-exhaust-system","title":"Aston martin VANTAGE 4.0T V8 Straight Catback add Resonator Tube Titanium Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eASton martin Vantage V8 4.0T\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Racing Grade Straight-Pipe Catback Exhaust System\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Maximum Flow Straight-Through Performance Exhaust Pipe\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Years: Please confirm exact model year before ordering\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eMaterial: Titanium Alloy\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Physical Thermal Coloring Titanium Alloy\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: VALVE-FREE DESIGN (Pure Straight-Through Configuration for Maximum Flow)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Method: Double-Sided Pull Welding Technology\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Type: Direct OEM Replacement | Plug-and-Play | No Cutting \u0026amp; No Welding Required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCore Feature: Unleash Maximum Horsepower \u0026amp; Turbo Spool Sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Maximize Exhaust Flow Velocity | Minimize Backpressure to Near Zero\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModification Results: Significant Turbo Response Improvement | Top-End HP Gain | Pure Racing Tone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Note: Professional installation recommended for optimal fitment.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLogo Customization: Free Laser Logo Engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWarranty: 1 Year\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePlace of Origin: Made in China (Factory Direct Pricing)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact (WeChat\/WhatsApp\/kakao Talk): +86 18924479531\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTitanium Straight-Pipe Exhaust System – The Ultimate Choice for Maximum Flow \u0026amp; Raw Horsepower\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. What is a Straight-Pipe Catback Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA straight-pipe exhaust system removes all restrictive chambers and valves, providing the most direct path for exhaust gases to exit the engine. Unlike chambered or valved mufflers that create turbulence, our design utilizes a smooth, uninterrupted pipeline from the catalytic converter back to the tips.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Bottleneck of OEM Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Chambered Systems— Restrictive design traps heat and pressure, choking high-RPM horsepower.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOur Straight-Through Design— Exhaust gases flow freely with near-zero backpressure, allowing the turbocharger to spool faster and the engine to breathe easier at redline.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe Result: Raw, unfiltered mechanical sound and a noticeable increase in top-end power delivery.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-purity industrial-grade titanium alloy, our exhaust systems are engineered to withstand extreme operating temperatures up to 1200°C, far exceeding the heat resistance of conventional stainless steel. Featuring ultra-thin, uniform wall thickness with precision industrial calibration, this titanium construction drastically reduces overall weight while delivering exceptional structural stability. Titanium’s inherent properties deliver outstanding resistance to high-temperature oxidation, acid corrosion, rust, and thermal fatigue, ensuring long-term stable performance in harsh high-heat and outdoor driving environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePure Performance – No Valves, No Restrictions\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis system is designed for drivers who demand uncompromised performance. By eliminating the valve mechanism, we create a lighter, simpler, and more reliable exhaust system. The result:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eMaximum Flow: Exhaust velocity is significantly increased, reducing backpressure to virtually zero. The smooth seamless titanium pipe inner wall eliminates gas turbulence for unobstructed exhaust discharge.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAggressive Sound Profile: Titanium’s unique acoustic characteristics deliver a crisp, deep, metallic throaty growl at idle that evolves into a pure, race-inspired high-pitched scream at high RPM, offering a far more layered and racing-oriented sound than stainless steel exhausts.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstant Throttle Response: Reduced exhaust resistance and excellent thermal conductivity mean your engine reacts quicker to every pedal input, eliminating power lag effectively.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUltra-Lightweight \u0026amp; Simplified Design\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy features an ultra-low density, making this straight-pipe system 40%-50% lighter than traditional 304 stainless steel exhausts of the same specification. Without bulky valve motors or electronic controllers, the streamlined structure further reduces vehicle curb weight, greatly optimizing the vehicle’s power-to-weight ratio, improving acceleration performance and overall handling flexibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e100% Bolt-On \/ Direct-Fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEngineered with precision CNC mandrel-bent titanium pipes, our system aligns perfectly with factory mounting points. No cutting, no welding, and no permanent modifications—simply unbolt the OEM unit and bolt on our performance titanium pipe. Fully reversible for original vehicle restoration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Drag Racing\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePush your vehicle to the limit with zero exhaust restriction. The high-temperature resistant titanium straight-pipe design maintains stable performance under extreme continuous high-RPM operation, ensuring you extract every ounce of horsepower from your engine when it matters most, perfectly adapting to professional track and drag racing scenarios.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Performance Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether it's a canyon run or a backroad blast, the sensitive throttle response and unique metallic racing exhaust note make every daily performance drive immersive and thrilling.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eShow Cars \u0026amp; Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe polished brushed titanium surface presents a premium matte metallic texture that never fades. Coupled with the aggressive racing tone and exquisite welding craftsmanship, it easily stands out at various vehicle exhibitions and car meetups.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTurbocharged Vehicles\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium exhaust is a game-changer for all turbocharged cars. Its excellent heat dissipation performance effectively reduces engine bay ambient temperature, significantly cuts down turbo lag, accelerates turbo spool speed, and releases the full potential of turbo power.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Why Choose Our Titanium Straight-Pipe Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-House Factory Production – We control quality from raw titanium material selection to finished product processing, with strict multi-channel quality inspection procedures, offering competitive factory-direct pricing.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Options Available – Need a specific bend, pipe diameter or tip style? We offer professional titanium exhaust custom fabrication for bulk orders and personalized modification demands.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePermanent Anti-Corrosion \u0026amp; Ultra-Long Durability – Industrial-grade titanium alloy features natural anti-rust, anti-oxidation and anti-high-temperature aging properties, no discoloration or deformation after long-term high-load use, maintaining optimal performance and appearance for years.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional Comprehensive After-Sales Support – Professional technical support, installation guidance and after-sales service are available globally.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM Welcome – We offer private labeling, surface treatment and personalized design services for global partners to meet diversified customization needs.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e5. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eReady to unleash the true potential of your vehicle? Reach out for a custom quote or technical inquiry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49347968991491,"sku":"AM-VAN-40T-TI-RT-SCB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0012_IMG_2730.jpg?v=1785396250"},{"product_id":"aston-martin-vantage-v8-4-0t-catback-titanium-valved-sport-exhaust-system","title":"Aston Martin Vantage V8 4.0T catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Aston Martin Vantage V8 4.0T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Aston Martin Vantage V8 4.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49347971416323,"sku":"AM-VAN-40T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0002__5_04f89b4a-61ba-4859-a3b3-0d303d2f77c9.jpg?v=1785396794"},{"product_id":"aston-martin-vantage-v8-4-0t-catback-add-resonator-tube-titanium-valved-sport-exhaust-system","title":"Aston Martin Vantage V8 4.0T catback add Resonator Tube Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Aston Martin Vantage V8 4.0T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Aston Martin Vantage V8 4.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49347978625283,"sku":"AM-VAN-40T-TI-RT-V-CB","price":2538.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0000__3_1c558297-cabe-412f-9886-64a9d697ff6a.jpg?v=1785397611"},{"product_id":"audi-a5-b9-2-0t-catback-titanium-valved-sport-exhaust-system","title":"AUDI A5 B9 2.0T catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: AUDI A5 B9 2.0T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: AUDI A5 B9 2.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49348064018691,"sku":"AUD-A5-B9-20T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0008__18_1fc487b3-e651-466b-ada8-beb2a56ebfac.jpg?v=1785402644"},{"product_id":"audi-a6-a7-c8-catback-titanium-valved-sport-exhaust-system","title":"Audi A6 A7 C8 catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi A6 A7 C8\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi A6 A7 C8\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49348078764291,"sku":"AUD-A6A7-C8-30T-TI-V-CB-UNIV","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/7.jpg?v=1785403455"},{"product_id":"audi-a8-d4-4-0t-catback-titanium-valved-sport-exhaust-system","title":"AUDI A8 D4 4.0T catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: AUDI A8 D4 4.0T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: AUDI A8 D4 4.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49355254268163,"sku":"AUD-A8-D4-40T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0004_2_0008_IMG_1631.jpg?v=1785562913"},{"product_id":"audi-r8-v10-5-2l-catback-titanium-valved-x-pipe-sport-exhaust-system-2-75in","title":"Audi R8 V10 5.2L catback Titanium Valved X pipe Sport Exhaust System  2.75in","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi R8 V10 5.2L\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi R8 V10 5.2L\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49373685874947,"sku":"AUD-R8-V10-275-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0008__11_9ad9dda0-57c0-4d8c-a780-42b6c7fbeb7c.jpg?v=1785826591"},{"product_id":"audi-r8-v10-straight-catback-dual-x-pipe-titanium-racing-grade-exhaust-system-2-5in","title":"Audi R8 V10 Straight Catback Dual X-pipe Titanium Racing Grade Exhaust System 2.5in","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAudi R8 V10\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Racing Grade Straight-Pipe Catback Exhaust System\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Maximum Flow Straight-Through Performance Exhaust Pipe\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Years: Please confirm exact model year before ordering\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eMaterial: Titanium Alloy\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Physical Thermal Coloring Titanium Alloy\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: VALVE-FREE DESIGN (Pure Straight-Through Configuration for Maximum Flow)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Method: Double-Sided Pull Welding Technology\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Type: Direct OEM Replacement | Plug-and-Play | No Cutting \u0026amp; No Welding Required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCore Feature: Unleash Maximum Horsepower \u0026amp; Turbo Spool Sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Maximize Exhaust Flow Velocity | Minimize Backpressure to Near Zero\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModification Results: Significant Turbo Response Improvement | Top-End HP Gain | Pure Racing Tone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Note: Professional installation recommended for optimal fitment.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLogo Customization: Free Laser Logo Engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWarranty: 1 Year\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePlace of Origin: Made in China (Factory Direct Pricing)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact (WeChat\/WhatsApp\/kakao Talk): +86 18924479531\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTitanium Straight-Pipe Exhaust System – The Ultimate Choice for Maximum Flow \u0026amp; Raw Horsepower\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. What is a Straight-Pipe Catback Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA straight-pipe exhaust system removes all restrictive chambers and valves, providing the most direct path for exhaust gases to exit the engine. Unlike chambered or valved mufflers that create turbulence, our design utilizes a smooth, uninterrupted pipeline from the catalytic converter back to the tips.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Bottleneck of OEM Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Chambered Systems— Restrictive design traps heat and pressure, choking high-RPM horsepower.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOur Straight-Through Design— Exhaust gases flow freely with near-zero backpressure, allowing the turbocharger to spool faster and the engine to breathe easier at redline.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe Result: Raw, unfiltered mechanical sound and a noticeable increase in top-end power delivery.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-purity industrial-grade titanium alloy, our exhaust systems are engineered to withstand extreme operating temperatures up to 1200°C, far exceeding the heat resistance of conventional stainless steel. Featuring ultra-thin, uniform wall thickness with precision industrial calibration, this titanium construction drastically reduces overall weight while delivering exceptional structural stability. Titanium’s inherent properties deliver outstanding resistance to high-temperature oxidation, acid corrosion, rust, and thermal fatigue, ensuring long-term stable performance in harsh high-heat and outdoor driving environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePure Performance – No Valves, No Restrictions\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis system is designed for drivers who demand uncompromised performance. By eliminating the valve mechanism, we create a lighter, simpler, and more reliable exhaust system. The result:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eMaximum Flow: Exhaust velocity is significantly increased, reducing backpressure to virtually zero. The smooth seamless titanium pipe inner wall eliminates gas turbulence for unobstructed exhaust discharge.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAggressive Sound Profile: Titanium’s unique acoustic characteristics deliver a crisp, deep, metallic throaty growl at idle that evolves into a pure, race-inspired high-pitched scream at high RPM, offering a far more layered and racing-oriented sound than stainless steel exhausts.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstant Throttle Response: Reduced exhaust resistance and excellent thermal conductivity mean your engine reacts quicker to every pedal input, eliminating power lag effectively.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUltra-Lightweight \u0026amp; Simplified Design\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy features an ultra-low density, making this straight-pipe system 40%-50% lighter than traditional 304 stainless steel exhausts of the same specification. Without bulky valve motors or electronic controllers, the streamlined structure further reduces vehicle curb weight, greatly optimizing the vehicle’s power-to-weight ratio, improving acceleration performance and overall handling flexibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e100% Bolt-On \/ Direct-Fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEngineered with precision CNC mandrel-bent titanium pipes, our system aligns perfectly with factory mounting points. No cutting, no welding, and no permanent modifications—simply unbolt the OEM unit and bolt on our performance titanium pipe. Fully reversible for original vehicle restoration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Drag Racing\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePush your vehicle to the limit with zero exhaust restriction. The high-temperature resistant titanium straight-pipe design maintains stable performance under extreme continuous high-RPM operation, ensuring you extract every ounce of horsepower from your engine when it matters most, perfectly adapting to professional track and drag racing scenarios.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Performance Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether it's a canyon run or a backroad blast, the sensitive throttle response and unique metallic racing exhaust note make every daily performance drive immersive and thrilling.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eShow Cars \u0026amp; Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe polished brushed titanium surface presents a premium matte metallic texture that never fades. Coupled with the aggressive racing tone and exquisite welding craftsmanship, it easily stands out at various vehicle exhibitions and car meetups.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTurbocharged Vehicles\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium exhaust is a game-changer for all turbocharged cars. Its excellent heat dissipation performance effectively reduces engine bay ambient temperature, significantly cuts down turbo lag, accelerates turbo spool speed, and releases the full potential of turbo power.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Why Choose Our Titanium Straight-Pipe Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-House Factory Production – We control quality from raw titanium material selection to finished product processing, with strict multi-channel quality inspection procedures, offering competitive factory-direct pricing.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Options Available – Need a specific bend, pipe diameter or tip style? We offer professional titanium exhaust custom fabrication for bulk orders and personalized modification demands.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePermanent Anti-Corrosion \u0026amp; Ultra-Long Durability – Industrial-grade titanium alloy features natural anti-rust, anti-oxidation and anti-high-temperature aging properties, no discoloration or deformation after long-term high-load use, maintaining optimal performance and appearance for years.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional Comprehensive After-Sales Support – Professional technical support, installation guidance and after-sales service are available globally.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM Welcome – We offer private labeling, surface treatment and personalized design services for global partners to meet diversified customization needs.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e5. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eReady to unleash the true potential of your vehicle? Reach out for a custom quote or technical inquiry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49373751050499,"sku":"AUD-R8-V10-DXP-TI-RC-CB","price":1940.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/IMG_8968.jpg?v=1785827915"},{"product_id":"audi-r8-v10-straight-catback-with-x-pipe-titanium-racing-grade-exhaust-system","title":"Audi R8 V10 Straight Catback with X pipe Titanium Racing Grade Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAudi R8 V10\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Racing Grade Straight-Pipe Catback Exhaust System\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Maximum Flow Straight-Through Performance Exhaust Pipe\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Years: Please confirm exact model year before ordering\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eMaterial: Titanium Alloy\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Physical Thermal Coloring Titanium Alloy\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: VALVE-FREE DESIGN (Pure Straight-Through Configuration for Maximum Flow)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Method: Double-Sided Pull Welding Technology\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Type: Direct OEM Replacement | Plug-and-Play | No Cutting \u0026amp; No Welding Required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCore Feature: Unleash Maximum Horsepower \u0026amp; Turbo Spool Sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Maximize Exhaust Flow Velocity | Minimize Backpressure to Near Zero\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModification Results: Significant Turbo Response Improvement | Top-End HP Gain | Pure Racing Tone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Note: Professional installation recommended for optimal fitment.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLogo Customization: Free Laser Logo Engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWarranty: 1 Year\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePlace of Origin: Made in China (Factory Direct Pricing)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact (WeChat\/WhatsApp\/kakao Talk): +86 18924479531\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTitanium Straight-Pipe Exhaust System – The Ultimate Choice for Maximum Flow \u0026amp; Raw Horsepower\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. What is a Straight-Pipe Catback Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA straight-pipe exhaust system removes all restrictive chambers and valves, providing the most direct path for exhaust gases to exit the engine. Unlike chambered or valved mufflers that create turbulence, our design utilizes a smooth, uninterrupted pipeline from the catalytic converter back to the tips.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Bottleneck of OEM Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Chambered Systems— Restrictive design traps heat and pressure, choking high-RPM horsepower.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOur Straight-Through Design— Exhaust gases flow freely with near-zero backpressure, allowing the turbocharger to spool faster and the engine to breathe easier at redline.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe Result: Raw, unfiltered mechanical sound and a noticeable increase in top-end power delivery.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-purity industrial-grade titanium alloy, our exhaust systems are engineered to withstand extreme operating temperatures up to 1200°C, far exceeding the heat resistance of conventional stainless steel. Featuring ultra-thin, uniform wall thickness with precision industrial calibration, this titanium construction drastically reduces overall weight while delivering exceptional structural stability. Titanium’s inherent properties deliver outstanding resistance to high-temperature oxidation, acid corrosion, rust, and thermal fatigue, ensuring long-term stable performance in harsh high-heat and outdoor driving environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePure Performance – No Valves, No Restrictions\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis system is designed for drivers who demand uncompromised performance. By eliminating the valve mechanism, we create a lighter, simpler, and more reliable exhaust system. The result:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eMaximum Flow: Exhaust velocity is significantly increased, reducing backpressure to virtually zero. The smooth seamless titanium pipe inner wall eliminates gas turbulence for unobstructed exhaust discharge.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAggressive Sound Profile: Titanium’s unique acoustic characteristics deliver a crisp, deep, metallic throaty growl at idle that evolves into a pure, race-inspired high-pitched scream at high RPM, offering a far more layered and racing-oriented sound than stainless steel exhausts.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstant Throttle Response: Reduced exhaust resistance and excellent thermal conductivity mean your engine reacts quicker to every pedal input, eliminating power lag effectively.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUltra-Lightweight \u0026amp; Simplified Design\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy features an ultra-low density, making this straight-pipe system 40%-50% lighter than traditional 304 stainless steel exhausts of the same specification. Without bulky valve motors or electronic controllers, the streamlined structure further reduces vehicle curb weight, greatly optimizing the vehicle’s power-to-weight ratio, improving acceleration performance and overall handling flexibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e100% Bolt-On \/ Direct-Fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEngineered with precision CNC mandrel-bent titanium pipes, our system aligns perfectly with factory mounting points. No cutting, no welding, and no permanent modifications—simply unbolt the OEM unit and bolt on our performance titanium pipe. Fully reversible for original vehicle restoration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Drag Racing\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePush your vehicle to the limit with zero exhaust restriction. The high-temperature resistant titanium straight-pipe design maintains stable performance under extreme continuous high-RPM operation, ensuring you extract every ounce of horsepower from your engine when it matters most, perfectly adapting to professional track and drag racing scenarios.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Performance Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether it's a canyon run or a backroad blast, the sensitive throttle response and unique metallic racing exhaust note make every daily performance drive immersive and thrilling.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eShow Cars \u0026amp; Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe polished brushed titanium surface presents a premium matte metallic texture that never fades. Coupled with the aggressive racing tone and exquisite welding craftsmanship, it easily stands out at various vehicle exhibitions and car meetups.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTurbocharged Vehicles\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium exhaust is a game-changer for all turbocharged cars. Its excellent heat dissipation performance effectively reduces engine bay ambient temperature, significantly cuts down turbo lag, accelerates turbo spool speed, and releases the full potential of turbo power.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Why Choose Our Titanium Straight-Pipe Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-House Factory Production – We control quality from raw titanium material selection to finished product processing, with strict multi-channel quality inspection procedures, offering competitive factory-direct pricing.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Options Available – Need a specific bend, pipe diameter or tip style? We offer professional titanium exhaust custom fabrication for bulk orders and personalized modification demands.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePermanent Anti-Corrosion \u0026amp; Ultra-Long Durability – Industrial-grade titanium alloy features natural anti-rust, anti-oxidation and anti-high-temperature aging properties, no discoloration or deformation after long-term high-load use, maintaining optimal performance and appearance for years.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional Comprehensive After-Sales Support – Professional technical support, installation guidance and after-sales service are available globally.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM Welcome – We offer private labeling, surface treatment and personalized design services for global partners to meet diversified customization needs.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e5. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eReady to unleash the true potential of your vehicle? Reach out for a custom quote or technical inquiry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49373769597187,"sku":"AUD-R8-V10-XP-TI-RC-CB","price":1940.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0003__6_ee56cb7f-44a6-4c80-97e1-dc695328e2d7.jpg?v=1785828453"},{"product_id":"audi-r8-v10-5-2l-catback-with-x-pipe-titanium-valved-sport-exhaust-system-3in","title":"Audi R8 V10 5.2L catback with X pipe Titanium Valved Sport Exhaust System  3in","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi R8 V10 5.2L\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi R8 V10 5.2L\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49373783097603,"sku":"AUD-R8-V10-3IN-XP-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0002_IMG_7942.jpg?v=1785828701"},{"product_id":"audi-r8-5-2l-v10-2020-straight-catback-for-opf-equipped-models-titanium-racing-grade-exhaust-system-2-75in","title":"AUDI R8 5.2L V10 2020+ Straight Catback For OPF‑Equipped models Titanium Racing Grade Exhaust System 2.75in","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAUDI R8 5.2L V10 2020+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Racing Grade Straight-Pipe Catback Exhaust System\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Maximum Flow Straight-Through Performance Exhaust Pipe\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Years: Please confirm exact model year before ordering\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eMaterial: Titanium Alloy\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Physical Thermal Coloring Titanium Alloy\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: VALVE-FREE DESIGN (Pure Straight-Through Configuration for Maximum Flow)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Method: Double-Sided Pull Welding Technology\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Type: Direct OEM Replacement | Plug-and-Play | No Cutting \u0026amp; No Welding Required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCore Feature: Unleash Maximum Horsepower \u0026amp; Turbo Spool Sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Maximize Exhaust Flow Velocity | Minimize Backpressure to Near Zero\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModification Results: Significant Turbo Response Improvement | Top-End HP Gain | Pure Racing Tone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Note: Professional installation recommended for optimal fitment.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLogo Customization: Free Laser Logo Engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWarranty: 1 Year\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePlace of Origin: Made in China (Factory Direct Pricing)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact (WeChat\/WhatsApp\/kakao Talk): +86 18924479531\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTitanium Straight-Pipe Exhaust System – The Ultimate Choice for Maximum Flow \u0026amp; Raw Horsepower\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. What is a Straight-Pipe Catback Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA straight-pipe exhaust system removes all restrictive chambers and valves, providing the most direct path for exhaust gases to exit the engine. Unlike chambered or valved mufflers that create turbulence, our design utilizes a smooth, uninterrupted pipeline from the catalytic converter back to the tips.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Bottleneck of OEM Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Chambered Systems— Restrictive design traps heat and pressure, choking high-RPM horsepower.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOur Straight-Through Design— Exhaust gases flow freely with near-zero backpressure, allowing the turbocharger to spool faster and the engine to breathe easier at redline.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe Result: Raw, unfiltered mechanical sound and a noticeable increase in top-end power delivery.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-purity industrial-grade titanium alloy, our exhaust systems are engineered to withstand extreme operating temperatures up to 1200°C, far exceeding the heat resistance of conventional stainless steel. Featuring ultra-thin, uniform wall thickness with precision industrial calibration, this titanium construction drastically reduces overall weight while delivering exceptional structural stability. Titanium’s inherent properties deliver outstanding resistance to high-temperature oxidation, acid corrosion, rust, and thermal fatigue, ensuring long-term stable performance in harsh high-heat and outdoor driving environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePure Performance – No Valves, No Restrictions\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis system is designed for drivers who demand uncompromised performance. By eliminating the valve mechanism, we create a lighter, simpler, and more reliable exhaust system. The result:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eMaximum Flow: Exhaust velocity is significantly increased, reducing backpressure to virtually zero. The smooth seamless titanium pipe inner wall eliminates gas turbulence for unobstructed exhaust discharge.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAggressive Sound Profile: Titanium’s unique acoustic characteristics deliver a crisp, deep, metallic throaty growl at idle that evolves into a pure, race-inspired high-pitched scream at high RPM, offering a far more layered and racing-oriented sound than stainless steel exhausts.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstant Throttle Response: Reduced exhaust resistance and excellent thermal conductivity mean your engine reacts quicker to every pedal input, eliminating power lag effectively.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUltra-Lightweight \u0026amp; Simplified Design\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy features an ultra-low density, making this straight-pipe system 40%-50% lighter than traditional 304 stainless steel exhausts of the same specification. Without bulky valve motors or electronic controllers, the streamlined structure further reduces vehicle curb weight, greatly optimizing the vehicle’s power-to-weight ratio, improving acceleration performance and overall handling flexibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e100% Bolt-On \/ Direct-Fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEngineered with precision CNC mandrel-bent titanium pipes, our system aligns perfectly with factory mounting points. No cutting, no welding, and no permanent modifications—simply unbolt the OEM unit and bolt on our performance titanium pipe. Fully reversible for original vehicle restoration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Drag Racing\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePush your vehicle to the limit with zero exhaust restriction. The high-temperature resistant titanium straight-pipe design maintains stable performance under extreme continuous high-RPM operation, ensuring you extract every ounce of horsepower from your engine when it matters most, perfectly adapting to professional track and drag racing scenarios.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Performance Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether it's a canyon run or a backroad blast, the sensitive throttle response and unique metallic racing exhaust note make every daily performance drive immersive and thrilling.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eShow Cars \u0026amp; Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe polished brushed titanium surface presents a premium matte metallic texture that never fades. Coupled with the aggressive racing tone and exquisite welding craftsmanship, it easily stands out at various vehicle exhibitions and car meetups.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTurbocharged Vehicles\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium exhaust is a game-changer for all turbocharged cars. Its excellent heat dissipation performance effectively reduces engine bay ambient temperature, significantly cuts down turbo lag, accelerates turbo spool speed, and releases the full potential of turbo power.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Why Choose Our Titanium Straight-Pipe Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-House Factory Production – We control quality from raw titanium material selection to finished product processing, with strict multi-channel quality inspection procedures, offering competitive factory-direct pricing.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Options Available – Need a specific bend, pipe diameter or tip style? We offer professional titanium exhaust custom fabrication for bulk orders and personalized modification demands.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePermanent Anti-Corrosion \u0026amp; Ultra-Long Durability – Industrial-grade titanium alloy features natural anti-rust, anti-oxidation and anti-high-temperature aging properties, no discoloration or deformation after long-term high-load use, maintaining optimal performance and appearance for years.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional Comprehensive After-Sales Support – Professional technical support, installation guidance and after-sales service are available globally.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM Welcome – We offer private labeling, surface treatment and personalized design services for global partners to meet diversified customization needs.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e5. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eReady to unleash the true potential of your vehicle? Reach out for a custom quote or technical inquiry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49373802692867,"sku":"AUD-R8-20P-275-OPF-TI-RC-CB","price":1940.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0007_IMG_2359.jpg?v=1785830066"},{"product_id":"audi-r8-5-2l-v10-2020-catback-for-north-american-version-titanium-valved-sport-exhaust-system","title":"AUDI R8 5.2L V10 2020+ Catback For North American Version Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: AUDI R8 5.2L V10 2020+ For North American Version\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: AUDI R8 5.2L V10 2020+ For North American Version\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49373813047555,"sku":"AUD-R8-20P-3IN-TI-V-CB-NA","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0006__9_7e3b1b5e-c945-45f3-8dd7-db61f05b8334.jpg?v=1785830580"},{"product_id":"audi-r8-v10-5-2l-2022-catback-for-north-american-version-titanium-valved-sport-exhaust-system-style-2","title":"Audi R8 V10 5.2L 2022+ Catback For North American Version Titanium Valved Sport Exhaust System Style 2","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: AUDI R8 5.2L V10 2020+ For North American Version\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: AUDI R8 5.2L V10 2020+ For North American Version\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49373967417603,"sku":"AUD-R8-22P-3IN-XP-TI-V-CB-NA","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0018__18.jpg?v=1785835358"},{"product_id":"audi-r8-v10-5-2l-catback-for-opf-equipped-models-titanium-valved-sport-exhaust-system-with-x-pipe","title":"Audi R8 V10 5.2L Catback For OPF‑Equipped models Titanium Valved Sport Exhaust System with X Pipe","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi R8 V10 5.2L OPF version\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi R8 V10 5.2L OPF version\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49379260268803,"sku":"AUD-R8-22P-3IN-OPF-XP-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0010__12.jpg?v=1785998685"},{"product_id":"audi-r8-v10-5-2l-catback-with-x-pipe-titanium-valved-sport-exhaust-system-dual-side-single-outlet","title":"Audi R8 V10 5.2L Catback with X pipe Titanium Valved Sport Exhaust System  Dual‑side single outlet","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi R8 V10 5.2L\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi R8 V10 5.2L\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49379387146499,"sku":"AUD-R8-V10-XP-TI-V-CB-DSO","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0010__13.jpg?v=1785999198"},{"product_id":"audi-r8-v10-2020-catback-for-opf-equipped-models-titanium-valved-sport-exhaust-system","title":"Audi R8 V10 2020+ Catback For OPF‑Equipped models Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi R8 V10 5.2L OPF version\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi R8 V10 5.2L OPF version\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49379398058243,"sku":"AUD-R8-22P-3IN-OPF-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0005_IMG_2495.jpg?v=1786002128"},{"product_id":"audi-r8-v10-catback-for-opf-equipped-models-titanium-valved-sport-exhaust-system-dual-side-single-outlet","title":"Audi R8 V10 Catback For OPF‑Equipped models Titanium Valved Sport Exhaust System Dual‑side single outlet","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi R8 V10 5.2L OPF version\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi R8 V10 5.2L OPF version\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49379404644611,"sku":"AUD-R8-22P-3IN-OPF-TI-V-CB-DSO","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0013__15.jpg?v=1786002303"},{"product_id":"audi-rs3-2-5t-8y-2024-catback-titanium-valved-sport-exhaust-system","title":"AUDI RS3 2.5T 8Y 2024+ Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: AUDI RS3 2.5T 8Y 24+\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: AUDI RS3 2.5T 8Y 24+\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49379461595395,"sku":"AUD-RS3-8Y-24P-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0017__14.jpg?v=1786002902"},{"product_id":"audi-rs3-2024-2-5t-catback-titanium-valved-sport-exhaust-system","title":"Audi RS3 2024+ 2.5T Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi RS3 2024 2.5T \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi RS3 2024 2.5T \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49379472441603,"sku":"AUD-RS3-8Y-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0014__14.jpg?v=1786004185"},{"product_id":"audi-rs3-ttrs-2-5t-catback-titanium-valved-sport-exhaust-system","title":"AUDI RS3 TTRS 2.5T Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: AUDI RS3 TTRS 2.5T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: AUDI RS3 TTRS 2.5T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49382598148355,"sku":"AUD-RS3TTRS-25T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/6_0012_IMG_1237.jpg?v=1786090034"},{"product_id":"audi-rs5-b8-5-catback-titanium-valved-sport-exhaust-system","title":"AUDI RS5 B8.5 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAUDI RS5 B8.5\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Control: This system comes standard with a precision bracket designed to accommodate your vehicle's original OEM valve motor. No aftermarket remote control is needed — the valve operates directly through your car's factory ECU logic, automatically opening and closing based on RPM, throttle position, and drive mode.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eI. What Is OEM-Integrated Titanium Valved Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe HMD titanium valved exhaust is a plug-and-play catback exhaust designed for stock ECU integration. It mounts your original factory valve motor via a precision custom bracket, enabling fully automatic valve operation without aftermarket remotes or vacuum modifications. It retains factory intelligent logic while delivering true racing performance and premium titanium exhaust tone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSolves Common Traditional Exhaust Issues\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Chamber Exhaust: Retains low-end torque but restricts high-RPM power output\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight Pipe Exhaust: Boosts top-end power but sacrifices low-speed torque with loud drone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual-Mode Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium valved exhaust perfectly balances daily usability and racing performance. The closed valve maintains proper backpressure for stable low-speed torque and quiet cruising. When the ECU triggers valve opening under high engine load, full exhaust flow reduces backpressure to unlock maximum high-RPM power. Compared with stainless steel exhausts, titanium material delivers clearer, more penetrating and layered exhaust sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eII. Core Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Grade Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt with premium titanium alloy, this performance exhaust features ultra-light weight to reduce vehicle load, fast heat dissipation and excellent high-temperature resistance. It fully resists rust and corrosion, adapting to all weather and road conditions. Adopting dual-layer high-temperature tension welding, all weld seams are tight, firm and crack-proof for long-term stable use. Custom physical thermal coloring creates a unique personalized look, with a reliable service life of over 10 years.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFull OEM Intelligent Control\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStock Motor Fit: Direct fit factory valve motor, no extra wiring, 100% reversible\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eECU Auto Adjustment: Real-time valve switching based on throttle input, RPM, Comfort and Sport drive modes\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComplete Stock Function Retention: Preserves all original vehicle electronic settings\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEnhanced Sound \u0026amp; Power\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy’s superior acoustic conductivity produces a crisp, resonant and penetrating exhaust tone that steel exhausts cannot achieve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Valve (Daily Mode): 80–85dB smooth mellow sound, near-stock quiet level, zero drone for daily commute and highway travel\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOpen Valve (Sport Mode): Aggressive deep roar, instant throttle response and smoother high-RPM power delivery for track and spirited driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSimple Bolt-On Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePrecision OEM replacement design ensures perfect vehicle compatibility. No cutting, no welding, fully reversible bolt-on installation. The lightweight titanium structure lowers installation difficulty and avoids unnecessary vehicle weight gain after modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIII. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute \u0026amp; Highway Cruising\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Closed Valve: Quiet and stable output, comfortable for long-distance daily driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Mountain Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Open Valve: Releases full engine potential with aggressive penetrating exhaust sound and stable high-temperature performance\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNight \u0026amp; Residential Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComfort Mode Quiet Operation: Low noise to avoid disturbing neighborhoods\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \u0026amp; Enthusiast Meets\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSport Mode Open Valve: Stylish titanium thermal coloring plus resonant racing sound for outstanding modification appeal\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIV. Package List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models:\u003c\/span\u003e\u003cspan\u003eAUDI RS5 B8.5\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContact customer service to confirm vehicle fitment before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRacing Titanium Alloy Catback Exhaust (with OEM valve motor bracket) × 1\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFull Set of Mounting Hardware\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eV. Why Choose Our Titanium Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eDirect factory supply: Strict quality control and competitive factory price\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRich customization: Thermal color finishing and free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium material: Lightweight, heat-resistant, rust-proof and 10+ years lifespan\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIndustrial-grade dual-layer tension welding: Crack-proof, airtight and long-lasting\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional after-sales technical support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom OEM \u0026amp; ODM orders acceptable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVI. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor vehicle fitment check, custom colors and wholesale quotes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEmail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp \/ Kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49383490355459,"sku":"AUD-RS5-B85-42-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0007_IMG_2654.jpg?v=1786092130"},{"product_id":"audi-rs5-rs4-b8-4-2l-catback-titanium-valved-sport-exhaust-system","title":"Audi RS5 RS4 B8 4.2l Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi RS5 RS4 B8 4.2l\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi RS5 RS4 B8 4.2l\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49383553761539,"sku":"AUD-RS4RS5-B8-42-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/1_31e7dcb0-912a-4020-bab7-62d88403875e.jpg?v=1786092786"},{"product_id":"audi-rs5-rs4-b8-4-2l-catback-heat-blued-titanium-valved-sport-exhaust-system","title":"Audi RS5 RS4 B8 4.2l Catback Heat‑Blued Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi RS5 RS4 B8 4.2l\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi RS5 RS4 B8 4.2l\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49383623262467,"sku":"AUD-RS4RS5-B8-42-TI-V-CB-BHT","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/1_853ad25b-6800-4080-9d69-3885d4ff21db.jpg?v=1786093117"},{"product_id":"audi-rs4-rs5-b9-catback-add-resonator-tube-titanium-valved-sport-exhaust-system","title":"AUDI RS4 RS5 B9 catback add Resonator Tube Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: AUDI RS4 RS5 B9\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: AUDI RS4 RS5 B9\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49383938720003,"sku":"AUD-RS4RS5-B9-29T-TI-RT-V-CB","price":2538.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0002___0014__16.jpg?v=1786095636"},{"product_id":"audi-rs4-rs5-b9-catback-titanium-valved-sport-exhaust-system","title":"AUDI RS4 RS5 B9 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: AUDI RS4 RS5 B9\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: AUDI RS4 RS5 B9\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49386286514435,"sku":"AUD-RS4RS5-B9-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/RS4RS5B9.jpg?v=1786167567"},{"product_id":"audi-rs6-c7-catback-add-resonator-tube-titanium-valved-sport-exhaust-system","title":"AUDI RS6 C7 catback add Resonator Tube Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: AUDI RS6 C7\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: AUDI RS6 C7\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49386307649795,"sku":"AUD-RS6-C7-40T-TI-RT-V-CB","price":2538.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0000_IMG_8584.jpg?v=1786167827"},{"product_id":"audi-rs6-c7-catback-titanium-valved-sport-exhaust-system","title":"AUDI RS6 C7 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: AUDI RS6 C7\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: AUDI RS6 C7\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49386318561539,"sku":"AUD-RS6-C7-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0019_IMG_8565.jpg?v=1786168043"},{"product_id":"audi-rs6-c8-4-0t-catback-add-resonator-tube-titanium-valved-sport-exhaust-system","title":"Audi RS6 C8 4.0T catback add Resonator Tube Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAudi RS6 C8 4.0T\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Control: This system comes standard with a precision bracket designed to accommodate your vehicle's original OEM valve motor. No aftermarket remote control is needed — the valve operates directly through your car's factory ECU logic, automatically opening and closing based on RPM, throttle position, and drive mode.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eI. What Is OEM-Integrated Titanium Valved Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe HMD titanium valved exhaust is a plug-and-play catback exhaust designed for stock ECU integration. It mounts your original factory valve motor via a precision custom bracket, enabling fully automatic valve operation without aftermarket remotes or vacuum modifications. It retains factory intelligent logic while delivering true racing performance and premium titanium exhaust tone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSolves Common Traditional Exhaust Issues\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Chamber Exhaust: Retains low-end torque but restricts high-RPM power output\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight Pipe Exhaust: Boosts top-end power but sacrifices low-speed torque with loud drone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual-Mode Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium valved exhaust perfectly balances daily usability and racing performance. The closed valve maintains proper backpressure for stable low-speed torque and quiet cruising. When the ECU triggers valve opening under high engine load, full exhaust flow reduces backpressure to unlock maximum high-RPM power. Compared with stainless steel exhausts, titanium material delivers clearer, more penetrating and layered exhaust sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eII. Core Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Grade Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt with premium titanium alloy, this performance exhaust features ultra-light weight to reduce vehicle load, fast heat dissipation and excellent high-temperature resistance. It fully resists rust and corrosion, adapting to all weather and road conditions. Adopting dual-layer high-temperature tension welding, all weld seams are tight, firm and crack-proof for long-term stable use. Custom physical thermal coloring creates a unique personalized look, with a reliable service life of over 10 years.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFull OEM Intelligent Control\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStock Motor Fit: Direct fit factory valve motor, no extra wiring, 100% reversible\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eECU Auto Adjustment: Real-time valve switching based on throttle input, RPM, Comfort and Sport drive modes\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComplete Stock Function Retention: Preserves all original vehicle electronic settings\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEnhanced Sound \u0026amp; Power\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy’s superior acoustic conductivity produces a crisp, resonant and penetrating exhaust tone that steel exhausts cannot achieve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Valve (Daily Mode): 80–85dB smooth mellow sound, near-stock quiet level, zero drone for daily commute and highway travel\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOpen Valve (Sport Mode): Aggressive deep roar, instant throttle response and smoother high-RPM power delivery for track and spirited driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSimple Bolt-On Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePrecision OEM replacement design ensures perfect vehicle compatibility. No cutting, no welding, fully reversible bolt-on installation. The lightweight titanium structure lowers installation difficulty and avoids unnecessary vehicle weight gain after modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIII. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute \u0026amp; Highway Cruising\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Closed Valve: Quiet and stable output, comfortable for long-distance daily driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Mountain Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Open Valve: Releases full engine potential with aggressive penetrating exhaust sound and stable high-temperature performance\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNight \u0026amp; Residential Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComfort Mode Quiet Operation: Low noise to avoid disturbing neighborhoods\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \u0026amp; Enthusiast Meets\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSport Mode Open Valve: Stylish titanium thermal coloring plus resonant racing sound for outstanding modification appeal\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIV. Package List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models:\u003c\/span\u003e\u003cspan\u003eAudi RS6 C8 4.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContact customer service to confirm vehicle fitment before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRacing Titanium Alloy Catback Exhaust (with OEM valve motor bracket) × 1\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFull Set of Mounting Hardware\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eV. Why Choose Our Titanium Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eDirect factory supply: Strict quality control and competitive factory price\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRich customization: Thermal color finishing and free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium material: Lightweight, heat-resistant, rust-proof and 10+ years lifespan\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIndustrial-grade dual-layer tension welding: Crack-proof, airtight and long-lasting\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional after-sales technical support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom OEM \u0026amp; ODM orders acceptable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVI. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor vehicle fitment check, custom colors and wholesale quotes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEmail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp \/ Kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49386335797507,"sku":"AUD-RS6-C8-40T-TI-RT-V-CB","price":2538.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0016__20.jpg?v=1786168451"},{"product_id":"audi-rs6-c8-4-0t-catback-titanium-valved-sport-exhaust-system","title":"Audi RS6 C8 4.0T Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAudi RS6 C8 4.0T\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Control: This system comes standard with a precision bracket designed to accommodate your vehicle's original OEM valve motor. No aftermarket remote control is needed — the valve operates directly through your car's factory ECU logic, automatically opening and closing based on RPM, throttle position, and drive mode.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eI. What Is OEM-Integrated Titanium Valved Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe HMD titanium valved exhaust is a plug-and-play catback exhaust designed for stock ECU integration. It mounts your original factory valve motor via a precision custom bracket, enabling fully automatic valve operation without aftermarket remotes or vacuum modifications. It retains factory intelligent logic while delivering true racing performance and premium titanium exhaust tone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSolves Common Traditional Exhaust Issues\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Chamber Exhaust: Retains low-end torque but restricts high-RPM power output\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight Pipe Exhaust: Boosts top-end power but sacrifices low-speed torque with loud drone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual-Mode Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium valved exhaust perfectly balances daily usability and racing performance. The closed valve maintains proper backpressure for stable low-speed torque and quiet cruising. When the ECU triggers valve opening under high engine load, full exhaust flow reduces backpressure to unlock maximum high-RPM power. Compared with stainless steel exhausts, titanium material delivers clearer, more penetrating and layered exhaust sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eII. Core Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Grade Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt with premium titanium alloy, this performance exhaust features ultra-light weight to reduce vehicle load, fast heat dissipation and excellent high-temperature resistance. It fully resists rust and corrosion, adapting to all weather and road conditions. Adopting dual-layer high-temperature tension welding, all weld seams are tight, firm and crack-proof for long-term stable use. Custom physical thermal coloring creates a unique personalized look, with a reliable service life of over 10 years.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFull OEM Intelligent Control\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStock Motor Fit: Direct fit factory valve motor, no extra wiring, 100% reversible\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eECU Auto Adjustment: Real-time valve switching based on throttle input, RPM, Comfort and Sport drive modes\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComplete Stock Function Retention: Preserves all original vehicle electronic settings\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEnhanced Sound \u0026amp; Power\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy’s superior acoustic conductivity produces a crisp, resonant and penetrating exhaust tone that steel exhausts cannot achieve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Valve (Daily Mode): 80–85dB smooth mellow sound, near-stock quiet level, zero drone for daily commute and highway travel\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOpen Valve (Sport Mode): Aggressive deep roar, instant throttle response and smoother high-RPM power delivery for track and spirited driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSimple Bolt-On Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePrecision OEM replacement design ensures perfect vehicle compatibility. No cutting, no welding, fully reversible bolt-on installation. The lightweight titanium structure lowers installation difficulty and avoids unnecessary vehicle weight gain after modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIII. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute \u0026amp; Highway Cruising\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Closed Valve: Quiet and stable output, comfortable for long-distance daily driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Mountain Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Open Valve: Releases full engine potential with aggressive penetrating exhaust sound and stable high-temperature performance\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNight \u0026amp; Residential Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComfort Mode Quiet Operation: Low noise to avoid disturbing neighborhoods\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \u0026amp; Enthusiast Meets\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSport Mode Open Valve: Stylish titanium thermal coloring plus resonant racing sound for outstanding modification appeal\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIV. Package List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models:\u003c\/span\u003e\u003cspan\u003eAudi RS6 C8 4.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContact customer service to confirm vehicle fitment before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRacing Titanium Alloy Catback Exhaust (with OEM valve motor bracket) × 1\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFull Set of Mounting Hardware\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eV. Why Choose Our Titanium Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eDirect factory supply: Strict quality control and competitive factory price\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRich customization: Thermal color finishing and free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium material: Lightweight, heat-resistant, rust-proof and 10+ years lifespan\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIndustrial-grade dual-layer tension welding: Crack-proof, airtight and long-lasting\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional after-sales technical support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom OEM \u0026amp; ODM orders acceptable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVI. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor vehicle fitment check, custom colors and wholesale quotes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEmail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp \/ Kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49386344251651,"sku":"AUD-RS6-C8-40T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0006__8.jpg?v=1786168602"},{"product_id":"audi-rs6-rs7-c8-catback-titanium-valved-sport-exhaust-system","title":"Audi RS6 RS7 C8 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAudi RS6 RS7 C8\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Control: This system comes standard with a precision bracket designed to accommodate your vehicle's original OEM valve motor. No aftermarket remote control is needed — the valve operates directly through your car's factory ECU logic, automatically opening and closing based on RPM, throttle position, and drive mode.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eI. What Is OEM-Integrated Titanium Valved Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe HMD titanium valved exhaust is a plug-and-play catback exhaust designed for stock ECU integration. It mounts your original factory valve motor via a precision custom bracket, enabling fully automatic valve operation without aftermarket remotes or vacuum modifications. It retains factory intelligent logic while delivering true racing performance and premium titanium exhaust tone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSolves Common Traditional Exhaust Issues\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Chamber Exhaust: Retains low-end torque but restricts high-RPM power output\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight Pipe Exhaust: Boosts top-end power but sacrifices low-speed torque with loud drone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual-Mode Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium valved exhaust perfectly balances daily usability and racing performance. The closed valve maintains proper backpressure for stable low-speed torque and quiet cruising. When the ECU triggers valve opening under high engine load, full exhaust flow reduces backpressure to unlock maximum high-RPM power. Compared with stainless steel exhausts, titanium material delivers clearer, more penetrating and layered exhaust sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eII. Core Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Grade Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt with premium titanium alloy, this performance exhaust features ultra-light weight to reduce vehicle load, fast heat dissipation and excellent high-temperature resistance. It fully resists rust and corrosion, adapting to all weather and road conditions. Adopting dual-layer high-temperature tension welding, all weld seams are tight, firm and crack-proof for long-term stable use. Custom physical thermal coloring creates a unique personalized look, with a reliable service life of over 10 years.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFull OEM Intelligent Control\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStock Motor Fit: Direct fit factory valve motor, no extra wiring, 100% reversible\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eECU Auto Adjustment: Real-time valve switching based on throttle input, RPM, Comfort and Sport drive modes\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComplete Stock Function Retention: Preserves all original vehicle electronic settings\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEnhanced Sound \u0026amp; Power\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy’s superior acoustic conductivity produces a crisp, resonant and penetrating exhaust tone that steel exhausts cannot achieve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Valve (Daily Mode): 80–85dB smooth mellow sound, near-stock quiet level, zero drone for daily commute and highway travel\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOpen Valve (Sport Mode): Aggressive deep roar, instant throttle response and smoother high-RPM power delivery for track and spirited driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSimple Bolt-On Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePrecision OEM replacement design ensures perfect vehicle compatibility. No cutting, no welding, fully reversible bolt-on installation. The lightweight titanium structure lowers installation difficulty and avoids unnecessary vehicle weight gain after modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIII. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute \u0026amp; Highway Cruising\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Closed Valve: Quiet and stable output, comfortable for long-distance daily driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Mountain Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Open Valve: Releases full engine potential with aggressive penetrating exhaust sound and stable high-temperature performance\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNight \u0026amp; Residential Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComfort Mode Quiet Operation: Low noise to avoid disturbing neighborhoods\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \u0026amp; Enthusiast Meets\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSport Mode Open Valve: Stylish titanium thermal coloring plus resonant racing sound for outstanding modification appeal\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIV. Package List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models:\u003c\/span\u003e\u003cspan\u003eAudi RS6 RS7 C8\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContact customer service to confirm vehicle fitment before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRacing Titanium Alloy Catback Exhaust (with OEM valve motor bracket) × 1\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFull Set of Mounting Hardware\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eV. Why Choose Our Titanium Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eDirect factory supply: Strict quality control and competitive factory price\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRich customization: Thermal color finishing and free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium material: Lightweight, heat-resistant, rust-proof and 10+ years lifespan\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIndustrial-grade dual-layer tension welding: Crack-proof, airtight and long-lasting\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional after-sales technical support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom OEM \u0026amp; ODM orders acceptable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVI. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor vehicle fitment check, custom colors and wholesale quotes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEmail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp \/ Kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49386357489923,"sku":"AUD-RS6RS7-C8-40T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0008__8.jpg?v=1786168892"},{"product_id":"audi-s3-2-0t-catback-titanium-valved-sport-exhaust-system","title":"Audi S3 2.0T Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAudi S3 2.0T\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Control: This system comes standard with a precision bracket designed to accommodate your vehicle's original OEM valve motor. No aftermarket remote control is needed — the valve operates directly through your car's factory ECU logic, automatically opening and closing based on RPM, throttle position, and drive mode.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eI. What Is OEM-Integrated Titanium Valved Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe HMD titanium valved exhaust is a plug-and-play catback exhaust designed for stock ECU integration. It mounts your original factory valve motor via a precision custom bracket, enabling fully automatic valve operation without aftermarket remotes or vacuum modifications. It retains factory intelligent logic while delivering true racing performance and premium titanium exhaust tone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSolves Common Traditional Exhaust Issues\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Chamber Exhaust: Retains low-end torque but restricts high-RPM power output\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight Pipe Exhaust: Boosts top-end power but sacrifices low-speed torque with loud drone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual-Mode Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium valved exhaust perfectly balances daily usability and racing performance. The closed valve maintains proper backpressure for stable low-speed torque and quiet cruising. When the ECU triggers valve opening under high engine load, full exhaust flow reduces backpressure to unlock maximum high-RPM power. Compared with stainless steel exhausts, titanium material delivers clearer, more penetrating and layered exhaust sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eII. Core Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Grade Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt with premium titanium alloy, this performance exhaust features ultra-light weight to reduce vehicle load, fast heat dissipation and excellent high-temperature resistance. It fully resists rust and corrosion, adapting to all weather and road conditions. Adopting dual-layer high-temperature tension welding, all weld seams are tight, firm and crack-proof for long-term stable use. Custom physical thermal coloring creates a unique personalized look, with a reliable service life of over 10 years.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFull OEM Intelligent Control\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStock Motor Fit: Direct fit factory valve motor, no extra wiring, 100% reversible\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eECU Auto Adjustment: Real-time valve switching based on throttle input, RPM, Comfort and Sport drive modes\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComplete Stock Function Retention: Preserves all original vehicle electronic settings\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEnhanced Sound \u0026amp; Power\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy’s superior acoustic conductivity produces a crisp, resonant and penetrating exhaust tone that steel exhausts cannot achieve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Valve (Daily Mode): 80–85dB smooth mellow sound, near-stock quiet level, zero drone for daily commute and highway travel\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOpen Valve (Sport Mode): Aggressive deep roar, instant throttle response and smoother high-RPM power delivery for track and spirited driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSimple Bolt-On Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePrecision OEM replacement design ensures perfect vehicle compatibility. No cutting, no welding, fully reversible bolt-on installation. The lightweight titanium structure lowers installation difficulty and avoids unnecessary vehicle weight gain after modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIII. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute \u0026amp; Highway Cruising\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Closed Valve: Quiet and stable output, comfortable for long-distance daily driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Mountain Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Open Valve: Releases full engine potential with aggressive penetrating exhaust sound and stable high-temperature performance\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNight \u0026amp; Residential Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComfort Mode Quiet Operation: Low noise to avoid disturbing neighborhoods\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \u0026amp; Enthusiast Meets\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSport Mode Open Valve: Stylish titanium thermal coloring plus resonant racing sound for outstanding modification appeal\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIV. Package List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models:\u003c\/span\u003e\u003cspan\u003eAudi S3 2.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContact customer service to confirm vehicle fitment before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRacing Titanium Alloy Catback Exhaust (with OEM valve motor bracket) × 1\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFull Set of Mounting Hardware\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eV. Why Choose Our Titanium Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eDirect factory supply: Strict quality control and competitive factory price\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRich customization: Thermal color finishing and free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium material: Lightweight, heat-resistant, rust-proof and 10+ years lifespan\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIndustrial-grade dual-layer tension welding: Crack-proof, airtight and long-lasting\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional after-sales technical support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom OEM \u0026amp; ODM orders acceptable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVI. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor vehicle fitment check, custom colors and wholesale quotes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEmail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp \/ Kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49438626513155,"sku":"AUD-S3-20T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/8_f5f420f1-9e71-4c3b-b78e-5b11e09fb3c9.jpg?v=1786501804"},{"product_id":"audi-s6-s7-c7-4-0t-catback-titanium-valved-sport-exhaust-system","title":"AUDI S6 S7 C7 4.0T Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: AUDI S6 S7 C7 4.0T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: AUDI S6 S7 C7 4.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49438666555651,"sku":"AUD-S6S7-C7-40T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0011_IMG_1653.jpg?v=1786505667"},{"product_id":"audi-s6-s7-c7-catback-titanium-valved-sport-exhaust-system","title":"Audi S6 S7 C7 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAudi S6 S7 C7\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Control: This system comes standard with a precision bracket designed to accommodate your vehicle's original OEM valve motor. No aftermarket remote control is needed — the valve operates directly through your car's factory ECU logic, automatically opening and closing based on RPM, throttle position, and drive mode.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eI. What Is OEM-Integrated Titanium Valved Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe HMD titanium valved exhaust is a plug-and-play catback exhaust designed for stock ECU integration. It mounts your original factory valve motor via a precision custom bracket, enabling fully automatic valve operation without aftermarket remotes or vacuum modifications. It retains factory intelligent logic while delivering true racing performance and premium titanium exhaust tone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSolves Common Traditional Exhaust Issues\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Chamber Exhaust: Retains low-end torque but restricts high-RPM power output\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight Pipe Exhaust: Boosts top-end power but sacrifices low-speed torque with loud drone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual-Mode Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium valved exhaust perfectly balances daily usability and racing performance. The closed valve maintains proper backpressure for stable low-speed torque and quiet cruising. When the ECU triggers valve opening under high engine load, full exhaust flow reduces backpressure to unlock maximum high-RPM power. Compared with stainless steel exhausts, titanium material delivers clearer, more penetrating and layered exhaust sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eII. Core Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Grade Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt with premium titanium alloy, this performance exhaust features ultra-light weight to reduce vehicle load, fast heat dissipation and excellent high-temperature resistance. It fully resists rust and corrosion, adapting to all weather and road conditions. Adopting dual-layer high-temperature tension welding, all weld seams are tight, firm and crack-proof for long-term stable use. Custom physical thermal coloring creates a unique personalized look, with a reliable service life of over 10 years.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFull OEM Intelligent Control\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStock Motor Fit: Direct fit factory valve motor, no extra wiring, 100% reversible\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eECU Auto Adjustment: Real-time valve switching based on throttle input, RPM, Comfort and Sport drive modes\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComplete Stock Function Retention: Preserves all original vehicle electronic settings\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEnhanced Sound \u0026amp; Power\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy’s superior acoustic conductivity produces a crisp, resonant and penetrating exhaust tone that steel exhausts cannot achieve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Valve (Daily Mode): 80–85dB smooth mellow sound, near-stock quiet level, zero drone for daily commute and highway travel\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOpen Valve (Sport Mode): Aggressive deep roar, instant throttle response and smoother high-RPM power delivery for track and spirited driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSimple Bolt-On Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePrecision OEM replacement design ensures perfect vehicle compatibility. No cutting, no welding, fully reversible bolt-on installation. The lightweight titanium structure lowers installation difficulty and avoids unnecessary vehicle weight gain after modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIII. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute \u0026amp; Highway Cruising\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Closed Valve: Quiet and stable output, comfortable for long-distance daily driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Mountain Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Open Valve: Releases full engine potential with aggressive penetrating exhaust sound and stable high-temperature performance\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNight \u0026amp; Residential Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComfort Mode Quiet Operation: Low noise to avoid disturbing neighborhoods\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \u0026amp; Enthusiast Meets\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSport Mode Open Valve: Stylish titanium thermal coloring plus resonant racing sound for outstanding modification appeal\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIV. Package List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models:\u003c\/span\u003e\u003cspan\u003eAudi S6 S7 C7\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContact customer service to confirm vehicle fitment before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRacing Titanium Alloy Catback Exhaust (with OEM valve motor bracket) × 1\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFull Set of Mounting Hardware\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eV. Why Choose Our Titanium Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eDirect factory supply: Strict quality control and competitive factory price\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRich customization: Thermal color finishing and free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium material: Lightweight, heat-resistant, rust-proof and 10+ years lifespan\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIndustrial-grade dual-layer tension welding: Crack-proof, airtight and long-lasting\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional after-sales technical support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom OEM \u0026amp; ODM orders acceptable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVI. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor vehicle fitment check, custom colors and wholesale quotes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEmail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp \/ Kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49438669209859,"sku":"AUD-S6-S7-C7-40T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/AudiS6_S7C7__0031__51.jpg?v=1786506034"},{"product_id":"audi-s6-s7-c8-catback-titanium-valved-sport-exhaust-system","title":"Audi S6 S7 C8 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAudi S6 S7 C8\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Control: This system comes standard with a precision bracket designed to accommodate your vehicle's original OEM valve motor. No aftermarket remote control is needed — the valve operates directly through your car's factory ECU logic, automatically opening and closing based on RPM, throttle position, and drive mode.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eI. What Is OEM-Integrated Titanium Valved Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe HMD titanium valved exhaust is a plug-and-play catback exhaust designed for stock ECU integration. It mounts your original factory valve motor via a precision custom bracket, enabling fully automatic valve operation without aftermarket remotes or vacuum modifications. It retains factory intelligent logic while delivering true racing performance and premium titanium exhaust tone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSolves Common Traditional Exhaust Issues\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Chamber Exhaust: Retains low-end torque but restricts high-RPM power output\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight Pipe Exhaust: Boosts top-end power but sacrifices low-speed torque with loud drone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual-Mode Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium valved exhaust perfectly balances daily usability and racing performance. The closed valve maintains proper backpressure for stable low-speed torque and quiet cruising. When the ECU triggers valve opening under high engine load, full exhaust flow reduces backpressure to unlock maximum high-RPM power. Compared with stainless steel exhausts, titanium material delivers clearer, more penetrating and layered exhaust sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eII. Core Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Grade Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt with premium titanium alloy, this performance exhaust features ultra-light weight to reduce vehicle load, fast heat dissipation and excellent high-temperature resistance. It fully resists rust and corrosion, adapting to all weather and road conditions. Adopting dual-layer high-temperature tension welding, all weld seams are tight, firm and crack-proof for long-term stable use. Custom physical thermal coloring creates a unique personalized look, with a reliable service life of over 10 years.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFull OEM Intelligent Control\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStock Motor Fit: Direct fit factory valve motor, no extra wiring, 100% reversible\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eECU Auto Adjustment: Real-time valve switching based on throttle input, RPM, Comfort and Sport drive modes\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComplete Stock Function Retention: Preserves all original vehicle electronic settings\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEnhanced Sound \u0026amp; Power\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy’s superior acoustic conductivity produces a crisp, resonant and penetrating exhaust tone that steel exhausts cannot achieve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Valve (Daily Mode): 80–85dB smooth mellow sound, near-stock quiet level, zero drone for daily commute and highway travel\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOpen Valve (Sport Mode): Aggressive deep roar, instant throttle response and smoother high-RPM power delivery for track and spirited driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSimple Bolt-On Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePrecision OEM replacement design ensures perfect vehicle compatibility. No cutting, no welding, fully reversible bolt-on installation. The lightweight titanium structure lowers installation difficulty and avoids unnecessary vehicle weight gain after modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIII. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute \u0026amp; Highway Cruising\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Closed Valve: Quiet and stable output, comfortable for long-distance daily driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Mountain Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Open Valve: Releases full engine potential with aggressive penetrating exhaust sound and stable high-temperature performance\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNight \u0026amp; Residential Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComfort Mode Quiet Operation: Low noise to avoid disturbing neighborhoods\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \u0026amp; Enthusiast Meets\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSport Mode Open Valve: Stylish titanium thermal coloring plus resonant racing sound for outstanding modification appeal\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIV. Package List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models:\u003c\/span\u003e\u003cspan\u003eAudi S6 S7 C8\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContact customer service to confirm vehicle fitment before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRacing Titanium Alloy Catback Exhaust (with OEM valve motor bracket) × 1\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFull Set of Mounting Hardware\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eV. Why Choose Our Titanium Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eDirect factory supply: Strict quality control and competitive factory price\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRich customization: Thermal color finishing and free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium material: Lightweight, heat-resistant, rust-proof and 10+ years lifespan\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIndustrial-grade dual-layer tension welding: Crack-proof, airtight and long-lasting\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional after-sales technical support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom OEM \u0026amp; ODM orders acceptable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVI. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor vehicle fitment check, custom colors and wholesale quotes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEmail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp \/ Kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49438678122755,"sku":"AUD-S6S7-C8-29T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/2_0c9b87ea-14fa-4539-a438-65a1562a7b25.jpg?v=1786506447"},{"product_id":"audi-s8-d4-catback-titanium-valved-sport-exhaust-system","title":"Audi S8 D4 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi S8 D4\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi S8 D4\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49438716821763,"sku":"AUD-S8-D4-40T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/7_097ae40f-ad38-420a-94bf-987538059fea.jpg?v=1786506878"},{"product_id":"audi-s8-d5-4-0t-catback-titanium-valved-sport-exhaust-system","title":"Audi S8 D5 4.0T Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi S8 D5 4.0T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi S8 D5 4.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49438719115523,"sku":"AUD-S8-D5-40T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0011__12.jpg?v=1786507123"},{"product_id":"audi-sq5-3-0t-catback-titanium-valved-sport-exhaust-system","title":"Audi SQ5 3.0T Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi SQ5 3.0T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi SQ5 3.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49438942527747,"sku":"AUD-SQ5-B8-30T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/OUCHI_0003_IMG_2812.jpg?v=1786512808"},{"product_id":"audi-ttrs-8j-2-5t-catback-titanium-valved-sport-exhaust-system","title":"Audi TTRS 8J 2.5T Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cspan\u003eFitment: \u003c\/span\u003e\u003cspan\u003eAudi TTRS 8J 2.5T\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Control: This system comes standard with a precision bracket designed to accommodate your vehicle's original OEM valve motor. No aftermarket remote control is needed — the valve operates directly through your car's factory ECU logic, automatically opening and closing based on RPM, throttle position, and drive mode.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eI. What Is OEM-Integrated Titanium Valved Exhaust?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe HMD titanium valved exhaust is a plug-and-play catback exhaust designed for stock ECU integration. It mounts your original factory valve motor via a precision custom bracket, enabling fully automatic valve operation without aftermarket remotes or vacuum modifications. It retains factory intelligent logic while delivering true racing performance and premium titanium exhaust tone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSolves Common Traditional Exhaust Issues\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Chamber Exhaust: Retains low-end torque but restricts high-RPM power output\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight Pipe Exhaust: Boosts top-end power but sacrifices low-speed torque with loud drone\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual-Mode Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis titanium valved exhaust perfectly balances daily usability and racing performance. The closed valve maintains proper backpressure for stable low-speed torque and quiet cruising. When the ECU triggers valve opening under high engine load, full exhaust flow reduces backpressure to unlock maximum high-RPM power. Compared with stainless steel exhausts, titanium material delivers clearer, more penetrating and layered exhaust sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eII. Core Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHigh-Grade Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt with premium titanium alloy, this performance exhaust features ultra-light weight to reduce vehicle load, fast heat dissipation and excellent high-temperature resistance. It fully resists rust and corrosion, adapting to all weather and road conditions. Adopting dual-layer high-temperature tension welding, all weld seams are tight, firm and crack-proof for long-term stable use. Custom physical thermal coloring creates a unique personalized look, with a reliable service life of over 10 years.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFull OEM Intelligent Control\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStock Motor Fit: Direct fit factory valve motor, no extra wiring, 100% reversible\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eECU Auto Adjustment: Real-time valve switching based on throttle input, RPM, Comfort and Sport drive modes\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComplete Stock Function Retention: Preserves all original vehicle electronic settings\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEnhanced Sound \u0026amp; Power\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTitanium alloy’s superior acoustic conductivity produces a crisp, resonant and penetrating exhaust tone that steel exhausts cannot achieve.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed Valve (Daily Mode): 80–85dB smooth mellow sound, near-stock quiet level, zero drone for daily commute and highway travel\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOpen Valve (Sport Mode): Aggressive deep roar, instant throttle response and smoother high-RPM power delivery for track and spirited driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSimple Bolt-On Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePrecision OEM replacement design ensures perfect vehicle compatibility. No cutting, no welding, fully reversible bolt-on installation. The lightweight titanium structure lowers installation difficulty and avoids unnecessary vehicle weight gain after modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIII. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute \u0026amp; Highway Cruising\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Closed Valve: Quiet and stable output, comfortable for long-distance daily driving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTrack Days \u0026amp; Mountain Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eAuto Open Valve: Releases full engine potential with aggressive penetrating exhaust sound and stable high-temperature performance\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNight \u0026amp; Residential Driving\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComfort Mode Quiet Operation: Low noise to avoid disturbing neighborhoods\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \u0026amp; Enthusiast Meets\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSport Mode Open Valve: Stylish titanium thermal coloring plus resonant racing sound for outstanding modification appeal\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIV. Package List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models:\u003c\/span\u003e\u003cspan\u003eAudi TTRS 8J 2.5T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eContact customer service to confirm vehicle fitment before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRacing Titanium Alloy Catback Exhaust (with OEM valve motor bracket) × 1\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFull Set of Mounting Hardware\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eV. Why Choose Our Titanium Exhaust System?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eDirect factory supply: Strict quality control and competitive factory price\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRich customization: Thermal color finishing and free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium material: Lightweight, heat-resistant, rust-proof and 10+ years lifespan\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIndustrial-grade dual-layer tension welding: Crack-proof, airtight and long-lasting\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProfessional after-sales technical support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom OEM \u0026amp; ODM orders acceptable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVI. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor vehicle fitment check, custom colors and wholesale quotes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEmail: \u003c\/span\u003e\u003ca rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cspan\u003eOUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp \/ Kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49439169511683,"sku":"AUD-TTRS-8J-25T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0020__17_78e06a4c-43ba-4c25-9f72-c8eb3ccb18c0.jpg?v=1786513702"},{"product_id":"audi-ttrs-8s-2-5t-catback-titanium-valved-sport-exhaust-system","title":"Audi TTRS 8S 2.5T Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: Audi TTRS 8S 2.5T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: Audi TTRS 8S 2.5T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49439186452739,"sku":"AUD-TTRS-8S-25T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0016__17.jpg?v=1786522349"},{"product_id":"bmw-f40-m135i-b48-catback-titanium-valved-sport-exhaust-system","title":"BMW F40 M135i b48 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: BMW F40 M135i b48\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: BMW F40 M135i b48\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49441684947203,"sku":"BMW-F40-M135i-B48-CB-TI-V","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0014__13.jpg?v=1786591400"},{"product_id":"bmw-m240i-b58-g42-catback-titanium-valved-sport-exhaust-system","title":"BMW M240I B58 G42 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: BMW M240I B58 G42\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: BMW M240I B58 G42\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49442062532867,"sku":"BMW-G42-M240i-B58-CB-TI-V","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0017__17.jpg?v=1786599933"},{"product_id":"bmw-340i-f30-3-0t-catback-titanium-valved-sport-exhaust-system","title":"BMW 340I F30 3.0T Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: BMW 340I F30 3.0T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: BMW 340I F30 3.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49442074558723,"sku":"BMW-F30-340i-B58-CB-TI-V","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0011__11.jpg?v=1786600714"},{"product_id":"bmw-330i-g20-2-0t-catback-titanium-valved-sport-exhaust-system","title":"BMW 330i G20 2.0T Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: BMW 330i G20 2.0T\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: BMW 330i G20 2.0T\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49442151432451,"sku":"BMW-G20-330i-B48-CB-TI-V","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0018__19.jpg?v=1786602214"},{"product_id":"bmw-335i-e92-catback-titanium-valved-sport-exhaust-system","title":"BMW 335i E92 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: BMW 335i E92 \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: BMW 335i E92 \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49442167750915,"sku":"BMW-E92-335i-N54-CB-TI-V","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0014__14_ba56ebd8-ae5e-4dc5-b704-f8e21180e36d.jpg?v=1786603731"},{"product_id":"bmw-440i-g22-catback-titanium-valved-sport-exhaust-system","title":"BMW 440i G22  Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: BMW 440i G22\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: BMW 440i G22\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49442361245955,"sku":"BMW-G22-440i-B58-CB-TI-V","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/1_87ca5d2d-5260-4158-9811-9f599ccbe2ac.jpg?v=1786608081"},{"product_id":"bmw-m440i-g22-catback-titanium-valved-sport-exhaust-system","title":"BMW M440I G22 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: BMW M440I G22\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: BMW M440I G22\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49443087057155,"sku":"BMW-G22-M440i-B58-CB-TI-V","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0011_IMG_1118.jpg?v=1786609182"},{"product_id":"bmw-m550i-g30-catback-titanium-valved-sport-exhaust-system","title":"BMW M550i G30 Catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"4ever-article\"\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eBrand: HMD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eFitment: BMW M550i G30\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Type: Variable-Valve Catback Performance Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Name: Racing-Grade Titanium Alloy Catback Exhaust\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eVehicle Fitment: Send vehicle details to customer service after order placement\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eModel Year: Confirm exact vehicle year before purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003e Material: Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eSurface Finish: Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: The default valve body is the one shown in the image. If you wish to use the vehicle’s original control system, please contact customer service to receive a free replacement bracket compatible with the vehicle’s original valve motor. \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWelding Process: High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation: Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePerformance Gain: Reduced exhaust backpressure, improved exhaust flow\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eUpgrade Effect: Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eInstallation Recommendation: Professional installation highly suggested\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eCustom Service: Free laser logo engraving\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOrigin: Made in China\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eContact: +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan\u003e1. Product Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWhat is a Valved Exhaust System?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA valved exhaust system, in simple terms, is an exhaust setup equipped with an adjustable valve mechanism that allows drivers to freely switch between two modes: \"quiet and comfortable\" or \"aggressive and loud.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the valve is closed, exhaust gas flows through a smaller diameter or single pipe, maintaining back pressure to preserve low-end torque. When the valve opens, gas flows through a larger diameter or dual pipes, reducing back pressure to unleash high-RPM horsepower. Perfectly balanced for daily usability and extreme driving performance, fully releasing the advantages of titanium alloy lightweight and high-temperature resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e2. Key Product Advantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003ePremium Titanium Alloy Construction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted from high-grade pure titanium alloy, our exhaust systems feature ultra-high strength, extreme temperature resistance and exceptional corrosion resistance, far surpassing traditional stainless steel exhausts. Titanium alloy material can withstand ultra-high temperatures up to 1650°C, effectively resisting high-temperature oxidation and exhaust gas erosion, maintaining permanent structural stability in long-term high-load driving conditions. With strict precision wall thickness control, it achieves 30%-40% lighter weight than stainless steel exhausts, reducing vehicle body load, improving power-to-weight ratio, and bringing more sensitive driving feedback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual-Side Welding Technology Craftsmanship\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAdopts professional double-side tension welding technology, the core craftsmanship exclusive to high-end performance exhaust systems. The double-side synchronous welding process forms uniform and dense welding lines on both the inner and outer walls of the titanium alloy pipe body, solving the problems of single-sided welding such as uneven stress, easy cracking and poor air tightness. The welding seam is smooth and flawless with stable structural tension, which effectively prevents air leakage and fracture during high-temperature and high-frequency vibration, greatly extends the service life of the exhaust system, and ensures consistent and stable exhaust power performance for a long time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFlexible Control Options\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, low-frequency sound insulation is better than stainless steel exhausts, no dull resonance, ideal for city commuting and highway cruising.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve Open—Unleashes an aggressive, crisp high-pitched roar unique to titanium alloy, with sharper throttle response, faster exhaust gas discharge and smoother high-RPM power delivery, bringing pure racing-level driving passion.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBolt-on \/ Direct-fit Installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation. The precise pipe body sizing of titanium alloy materials ensures perfect vehicle fitting without modification damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e3. Application Scenarios\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDaily Commute\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising. The excellent damping performance of titanium alloy avoids driving fatigue caused by exhaust resonance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeekend Canyon Runs \/ Track Days\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnleash the full potential of your engine with sharp high-RPM response, rapid exhaust gas circulation and a unique titanium roaring exhaust note — making every drive an exhilarating professional racing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLate-night Returns\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Closed\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCar Shows \/ Meetups\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eValve: Open\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUnique crisp titanium alloy exhaust sound and exquisite welding craftsmanship turn heads instantly, fully showcasing your professional and high-end taste in automotive modification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e4. Product List\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCompatible Models: BMW M550i G30\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWireless Controller Set: 1 set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eScrews and hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5. Why Choose Us?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eComprehensive after-sales support\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan\u003eOEM\/ODM orders welcome\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003e6. Contact Us\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003email: OUCHIEXHAUST009@gmail.com\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhatsApp\/kakao Talk: +86 18924479531\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49443407986947,"sku":"BMW-G30-M550i-N63-CB-TI-V","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/0017__17_14f9bbc1-3d63-4c75-b5b3-b6cb4e8d1bd5.jpg?v=1786612411"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/collections\/110.jpg?v=1666270710","url":"https:\/\/www.hmdexhaust.com\/collections\/titanium-alloy.oembed?page=3","provider":"HMD Performance Exhaust","version":"1.0","type":"link"}