{"title":"For Mercedes-Benz","description":"","products":[{"product_id":"mercedes-benz-amg-c63-w205-valved-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz AMG C63 W205 Valved Catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz AMG C63 W205\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz AMG C63 W205\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710160871683,"sku":"MB-AMGC63-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_96b37357e5ef7b97.jpg?v=1790477882"},{"product_id":"mercedes-benz-amg-cls63-c218-valved-catback-titanium-racing-grade-exhaust-system","title":"Mercedes-Benz AMG CLS63 C218 Valved Catback Titanium Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz AMG CLS63 C218\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Catback Performance Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing-Grade Titanium Alloy Catback Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e Send vehicle details to customer service after order placement\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Year:\u003c\/strong\u003e Confirm exact vehicle year before purchase\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Process:\u003c\/strong\u003e High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Gain:\u003c\/strong\u003e Reduced exhaust backpressure, improved exhaust flow\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrade Effect:\u003c\/strong\u003e Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Recommendation:\u003c\/strong\u003e Professional installation highly suggested\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCustom Service:\u003c\/strong\u003e Free laser logo engraving\u003c\/p\u003e\n\u003cp\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact:\u003c\/strong\u003e +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/p\u003e\n\u003cp\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Titanium Alloy Construction\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eDual-Side Welding Technology Craftsmanship\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz AMG CLS63 C218\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/p\u003e\n\u003cp\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/p\u003e\n\u003cp\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/p\u003e\n\u003cp\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/p\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710168310019,"sku":"MB-AMGCLS63-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_bca592bfeb2b44e6.jpg?v=1790674596"},{"product_id":"mercedes-benz-amg-cls63-w219-6-2l-valved-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz AMG CLS63 W219 6.2L Valved Catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz AMG CLS63 W219 6.2L\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz AMG CLS63 W219 6.2L\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710186692867,"sku":"MB-AMGCLS63-6.2L-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_b460d63e583913f2.jpg?v=1790674616"},{"product_id":"mercedes-benz-amg-e53-w214-2024-valved-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz AMG E53 W214 2024 Valved Catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz AMG E53 W214 2024\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz AMG E53 W214 2024\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710198849795,"sku":"MB-AMGE53-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_f6cd811985ea21bd.jpg?v=1790477920"},{"product_id":"mercedes-benz-e63-w213-catback-sus304-valved-sport-exhaust-system","title":"Mercedes-Benz E63 W213 catback SUS304 Valved Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz E63 W213\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz E63 W213\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710204616963,"sku":"MB-E63W213-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_f7f206278142c628.jpg?v=1790477943"},{"product_id":"mercedes-benz-e63-w213-valved-catback-titanium-racing-grade-exhaust-system","title":"Mercedes-Benz E63 W213 Valved Catback Titanium Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz E63 W213\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Catback Performance Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing-Grade Titanium Alloy Catback Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e Send vehicle details to customer service after order placement\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Year:\u003c\/strong\u003e Confirm exact vehicle year before purchase\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Process:\u003c\/strong\u003e High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Gain:\u003c\/strong\u003e Reduced exhaust backpressure, improved exhaust flow\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrade Effect:\u003c\/strong\u003e Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Recommendation:\u003c\/strong\u003e Professional installation highly suggested\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCustom Service:\u003c\/strong\u003e Free laser logo engraving\u003c\/p\u003e\n\u003cp\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact:\u003c\/strong\u003e +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/p\u003e\n\u003cp\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Titanium Alloy Construction\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eDual-Side Welding Technology Craftsmanship\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz E63 W213\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/p\u003e\n\u003cp\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/p\u003e\n\u003cp\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/p\u003e\n\u003cp\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/p\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710557135107,"sku":"MB-E63W213-TI-V-CB-3V","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_7f29606400843af1.jpg?v=1790587551"},{"product_id":"mercedes-benz-e63-w213-catback-titanium-valved-sport-exhaust-system","title":"Mercedes-Benz E63 W213 catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz E63 W213\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Catback Performance Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing-Grade Titanium Alloy Catback Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e Send vehicle details to customer service after order placement\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Year:\u003c\/strong\u003e Confirm exact vehicle year before purchase\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Process:\u003c\/strong\u003e High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Gain:\u003c\/strong\u003e Reduced exhaust backpressure, improved exhaust flow\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrade Effect:\u003c\/strong\u003e Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Recommendation:\u003c\/strong\u003e Professional installation highly suggested\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCustom Service:\u003c\/strong\u003e Free laser logo engraving\u003c\/p\u003e\n\u003cp\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact:\u003c\/strong\u003e +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/p\u003e\n\u003cp\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Titanium Alloy Construction\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eDual-Side Welding Technology Craftsmanship\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz E63 W213\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/p\u003e\n\u003cp\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/p\u003e\n\u003cp\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/p\u003e\n\u003cp\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/p\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710568276227,"sku":"MB-E63W213-TI-V-CB-2V","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_c307cdc5ae0aa12d.jpg?v=1790478136"},{"product_id":"mercedes-benz-e55-w211-catback-sus304-valved-sport-exhaust-system","title":"Mercedes-Benz E55 W211 catback SUS304 Valved Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz E55 W211\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz E55 W211\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710577680643,"sku":"MB-E55W211-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_fcac89e437522619.jpg?v=1790674634"},{"product_id":"mercedes-benz-glc300-x254-valved-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz GLC300 X254 Valved Catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz GLC300 X254\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz GLC300 X254\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710580859139,"sku":"MB-GLC300X2-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_edcc93e8873831d5.jpg?v=1790587565"},{"product_id":"mercedes-benz-gle53-w167-valved-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz GLE53 W167 Valved Catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz GLE53 W167\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz GLE53 W167\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710596129027,"sku":"MB-GLE53W16-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_326a3da70783f47b.jpg?v=1790587584"},{"product_id":"mercedes-benz-gls63-x167-4-0t-catback-sus304-valved-sport-exhaust-system","title":"Mercedes-Benz GLS63 X167 4.0T catback SUS304 Valved Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz GLS63 X167 4.0T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz GLS63 X167 4.0T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710608711939,"sku":"MB-GLS63X16-4.0T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_3b7c77b4a86e18d4.jpg?v=1790674650"},{"product_id":"mercedes-benz-amg-gt-4-0t-straight-catback-titanium-racing-grade-exhaust-system","title":"Mercedes-Benz AMG GT 4.0T Straight Catback Titanium Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz AMG GT 4.0T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Racing Grade Straight-Pipe Catback Exhaust System\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Maximum Flow Straight-Through Performance Exhaust Pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Titanium Alloy\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Physical Thermal Coloring Titanium Alloy\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e VALVE-FREE DESIGN (Pure Straight-Through Configuration for Maximum Flow)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e Double-Sided Pull Welding Technology\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement | Plug-and-Play | No Cutting \u0026amp; No Welding Required\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCore Feature:\u003c\/strong\u003e Unleash Maximum Horsepower \u0026amp; Turbo Spool Sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Gain:\u003c\/strong\u003e Maximize Exhaust Flow Velocity | Minimize Backpressure to Near Zero\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification Results:\u003c\/strong\u003e Significant Turbo Response Improvement | Top-End HP Gain | Pure Racing Tone\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended for optimal fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China (Factory Direct Pricing)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eTitanium Straight-Pipe Exhaust System – The Ultimate Choice for Maximum Flow \u0026amp; Raw Horsepower\u003c\/p\u003e\n\u003ch3\u003e1. What is a Straight-Pipe Catback Exhaust?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Bottleneck of OEM Exhausts:\u003c\/p\u003e\n\u003cp\u003eOEM Chambered Systems— Restrictive design traps heat and pressure, choking high-RPM horsepower.\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Result:\u003c\/strong\u003e Raw, unfiltered mechanical sound and a noticeable increase in top-end power delivery.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Titanium Alloy Construction\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003ePure Performance – No Valves, No Restrictions\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Flow:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAggressive Sound Profile:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstant Throttle Response:\u003c\/strong\u003e Reduced exhaust resistance and excellent thermal conductivity mean your engine reacts quicker to every pedal input, eliminating power lag effectively.\u003c\/p\u003e\n\u003ch3\u003eUltra-Lightweight \u0026amp; Simplified Design\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003e100% Bolt-On \/ Direct-Fit Installation\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eTrack Days \u0026amp; Drag Racing\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eWeekend Performance Driving\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eShow Cars \u0026amp; Meetups\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eTurbocharged Vehicles\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e4. Why Choose Our Titanium Straight-Pipe Exhaust?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eProfessional Comprehensive After-Sales Support – Professional technical support, installation guidance and after-sales service are available globally.\u003c\/p\u003e\n\u003cp\u003eOEM\/ODM Welcome – We offer private labeling, surface treatment and personalized design services for global partners to meet diversified customization needs.\u003c\/p\u003e\n\u003ch3\u003e5. Contact Us\u003c\/h3\u003e\n\u003cp\u003eReady to unleash the true potential of your vehicle? Reach out for a custom quote or technical inquiry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMail:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710614446339,"sku":"MB-AMGGT-4.0T-TI-SCB-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_ab2e1ba8a511a4ef.jpg?v=1790674673"},{"product_id":"mercedes-benz-amg-gt-r-catback-titanium-valved-sport-exhaust-system","title":"Mercedes-Benz AMG GT-R catback Titanium Valved Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz AMG GT-R\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Catback Performance Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing-Grade Titanium Alloy Catback Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e Send vehicle details to customer service after order placement\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Year:\u003c\/strong\u003e Confirm exact vehicle year before purchase\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Process:\u003c\/strong\u003e High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Gain:\u003c\/strong\u003e Reduced exhaust backpressure, improved exhaust flow\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrade Effect:\u003c\/strong\u003e Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Recommendation:\u003c\/strong\u003e Professional installation highly suggested\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCustom Service:\u003c\/strong\u003e Free laser logo engraving\u003c\/p\u003e\n\u003cp\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact:\u003c\/strong\u003e +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/p\u003e\n\u003cp\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Titanium Alloy Construction\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eDual-Side Welding Technology Craftsmanship\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz AMG GT-R\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/p\u003e\n\u003cp\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/p\u003e\n\u003cp\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/p\u003e\n\u003cp\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/p\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710628602115,"sku":"MB-AMGGTR-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_b1718ee807b85a21.jpg?v=1790587614"},{"product_id":"mercedes-benz-gt43-gt50-e53-gt53-valved-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz GT43 GT50 E53 GT53 Valved Catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz GT43 GT50 E53 GT53\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz GT43 GT50 E53 GT53\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710635680003,"sku":"MB-GT43GT50-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_f327ebe1a3cc6625.jpg?v=1790674694"},{"product_id":"mercedes-benz-amg-gt63-x290-catback-sus304-valved-sport-exhaust-system","title":"Mercedes-Benz AMG GT63 X290 catback SUS304 Valved Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz AMG GT63 X290\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz AMG GT63 X290\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710646100227,"sku":"MB-AMGGT63-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_14a831b0431aca55.jpg?v=1790478574"},{"product_id":"mercedes-benz-g63-w463-5-5t-straight-axle-back-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz G63 W463 5.5T Straight Axle-Back SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz G63 W463 5.5T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Racing Grade Straight-Pipe Axle-Back Exhaust System\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Maximum Flow Straight-Through Performance Exhaust Pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e VALVE-FREE DESIGN (Pure Straight-Through Configuration for Maximum Flow)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded (Full-Penetration Craftsmanship)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement | Plug-and-Play | No Cutting \u0026amp; No Welding Required\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCore Feature:\u003c\/strong\u003e Unleash Maximum Horsepower \u0026amp; Turbo Spool Sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Gain:\u003c\/strong\u003e Maximize Exhaust Flow Velocity | Minimize Backpressure to Near Zero\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification Results:\u003c\/strong\u003e Significant Turbo Response Improvement | Top-End HP Gain | Pure Racing Tone\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended for optimal fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China (Factory Direct Pricing)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003e304 Stainless Steel Straight-Pipe Exhaust System – The Ultimate Choice for Maximum Flow \u0026amp; Raw Horsepower\u003c\/p\u003e\n\u003ch3\u003e1. What is a Straight-Pipe Axle-Back Exhaust?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Bottleneck of OEM Exhausts:\u003c\/p\u003e\n\u003cp\u003eOEM Chambered Systems— Restrictive design traps heat and pressure, choking high-RPM horsepower.\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Result:\u003c\/strong\u003e Raw, unfiltered mechanical sound and a noticeable increase in top-end power delivery.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003eHigh-Grade 304 Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from premium SUS304 stainless steel, our exhaust systems are built to withstand extreme temperatures up to 1050°C. With strict wall thickness control, we reduce unnecessary weight while ensuring maximum durability against heat, rust, and corrosion.\u003c\/p\u003e\n\u003ch3\u003ePure Performance – No Valves, No Restrictions\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Flow:\u003c\/strong\u003e Exhaust velocity is significantly increased, reducing backpressure to virtually zero.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAggressive Sound Profile:\u003c\/strong\u003e Expect a deep, throaty growl at idle that transforms into a race-inspired scream at high RPM.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstant Throttle Response:\u003c\/strong\u003e Reduced exhaust resistance means your engine reacts quicker to every pedal input.\u003c\/p\u003e\n\u003ch3\u003eLightweight \u0026amp; Simplified Design\u003c\/h3\u003e\n\u003cp\u003eWithout bulky valve motors or electronic controllers, this straight-pipe system is significantly lighter than valved alternatives. Less weight means better power-to-weight ratio for your vehicle.\u003c\/p\u003e\n\u003cp\u003e100% Bolt-On \/ Direct-Fit Installation\u003c\/p\u003e\n\u003cp\u003eEngineered with precision CNC mandrel-bent 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 the HMD performance pipe. Fully reversible.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eTrack Days \u0026amp; Drag Racing\u003c\/h3\u003e\n\u003cp\u003ePush your vehicle to the limit with zero exhaust restriction. The straight-pipe design ensures you extract every ounce of horsepower from your engine when it matters most.\u003c\/p\u003e\n\u003ch3\u003eWeekend Performance Driving\u003c\/h3\u003e\n\u003cp\u003eWhether it's a canyon run or a backroad blast, the crisp throttle response and raw exhaust note make every drive an event.\u003c\/p\u003e\n\u003ch3\u003eShow Cars \u0026amp; Meetups\u003c\/h3\u003e\n\u003cp\u003eTurn heads with the aggressive tone and the visible craftsmanship of polished 304 stainless steel piping.\u003c\/p\u003e\n\u003ch3\u003eTurbocharged Vehicles\u003c\/h3\u003e\n\u003cp\u003eIf you own a turbocharged car, this exhaust is a game-changer. Reduce turbo lag significantly with faster spool times.\u003c\/p\u003e\n\u003ch3\u003e4. Why Choose Our Straight-Pipe Exhaust?\u003c\/h3\u003e\n\u003cp\u003eIn-House Factory Production – We control quality from raw material to finished product, offering competitive factory-direct pricing.\u003c\/p\u003e\n\u003cp\u003eCustom Options Available – Need a specific bend or tip style? We offer custom fabrication for bulk orders.\u003c\/p\u003e\n\u003cp\u003eRust-Proof \u0026amp; Durable – 304 stainless steel ensures your exhaust looks and performs great for years.\u003c\/p\u003e\n\u003cp\u003eComprehensive After-Sales Support – Technical support and installation guidance available.\u003c\/p\u003e\n\u003cp\u003eOEM\/ODM Welcome – We offer private labeling and design services for global partners.\u003c\/p\u003e\n\u003ch3\u003e5. Contact Us\u003c\/h3\u003e\n\u003cp\u003eReady to unleash the true potential of your vehicle? Reach out for a custom quote or technical inquiry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMail:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710653309187,"sku":"MB-G63W463-5.5T-SS-SCB-AXB","price":900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_78065b6da40f30dc.jpg?v=1790674715"},{"product_id":"mercedes-benz-g63-w464-valved-axle-back-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz G63 W464 Valved Axle-Back SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz G63 W464\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Axle-Back)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade axle-back Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz G63 W464\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710672183555,"sku":"MB-G63W464-SS-V-AXB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_eb692609cae35501.jpg?v=1790674739"},{"product_id":"mercedes-benz-ml400-w166-valved-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz ML400 W166 Valved Catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz ML400 W166\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz ML400 W166\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710689353987,"sku":"MB-ML400W16-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_0cbfc595027ae1ec.jpg?v=1790587647"},{"product_id":"mercedes-benz-ml500-w166-catback-sus304-valved-sport-exhaust-system","title":"Mercedes-Benz ML500 W166 catback SUS304 Valved Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz ML500 W166\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz ML500 W166\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710692663555,"sku":"MB-ML500W16-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_32b48d144aa71748.jpg?v=1790674763"},{"product_id":"mercedes-benz-slk200-r230-valved-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz SLK200 R230 Valved Catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz SLK200 R230\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz SLK200 R230\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710695022851,"sku":"MB-SLK200R2-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_d12a70a321f38931.jpg?v=1790587668"},{"product_id":"mercedes-benz-s550-w221-catback-sus304-valved-sport-exhaust-system","title":"Mercedes-Benz S550 W221 catback SUS304 Valved Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz S550 W221\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz S550 W221\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710697414915,"sku":"MB-S550W221-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_5e835a6ef943ddf6.jpg?v=1790479111"},{"product_id":"mercedes-benz-s500-c217-4-7t-valved-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz S500 C217 4.7T Valved Catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz S500 C217 4.7T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz S500 C217 4.7T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710702395651,"sku":"MB-S500C217-4.7T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_1894403d7522795b.jpg?v=1790587687"},{"product_id":"mercedes-benz-s63-coupe-c217-4-0t-valved-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz S63 Coupe C217 4.0T Valved Catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz S63 Coupe C217 4.0T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz S63 Coupe C217 4.0T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710707638531,"sku":"MB-S63COUPE-4.0T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_ced7955a507e93e3.jpg?v=1790479287"},{"product_id":"mercedes-benz-s63-w223-catback-sus304-valved-sport-exhaust-system","title":"Mercedes-Benz S63 W223 catback SUS304 Valved Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz S63 W223\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz S63 W223\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49710713078019,"sku":"MB-S63W223-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_e5af87f6a1ad8a8d.jpg?v=1790674785"},{"product_id":"mercedes-benz-amg-a35-w177-2-0t-2024-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz AMG A35 W177 2.0T 2024 catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz AMG A35 W177 2.0T 2024\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz AMG A35 W177 2.0T 2024\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726071210243,"sku":"MB-AMGA35-2.0T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_edf97b77d3309e67.jpg?v=1790673453"},{"product_id":"mercedes-benz-a200-w176-1-6t-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz A200 W176 1.6T catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz A200 W176 1.6T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz A200 W176 1.6T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726120657155,"sku":"MB-A200W176-1.6T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_d929826ad5dcf1cd.jpg?v=1790674125"},{"product_id":"mercedes-benz-a200-w177-1-3t-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz A200 W177 1.3T catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz A200 W177 1.3T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz A200 W177 1.3T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726126620931,"sku":"MB-A200W177-1.3T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_fd327c0de69b6ecc.jpg?v=1790674197"},{"product_id":"mercedes-benz-c63-w205-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz C63 W205 catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz C63 W205\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz C63 W205\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726130323715,"sku":"MB-C63W205-SS-V-CB-STD","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_eda1b350132b600a.jpg?v=1790674295"},{"product_id":"mercedes-benz-c63-w205-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz C63 W205 catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz C63 W205\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz C63 W205\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726136451331,"sku":"MB-C63W205-SS-V-CB-EXT","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_b71531f1a65a1a00.jpg?v=1790674389"},{"product_id":"mercedes-benz-cla250-2016-2-0t-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz CLA250 2016 2.0T catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz CLA250 2016 2.0T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz CLA250 2016 2.0T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726140416259,"sku":"MB-CLA25020-2.0T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_a9ef02c6166a2271.jpg?v=1790674483"},{"product_id":"mercedes-benz-cls300-cls350-c257-2-0t-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz CLS300 CLS350 C257 2.0T catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz CLS300 CLS350 C257 2.0T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz CLS300 CLS350 C257 2.0T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726146216195,"sku":"MB-CLS300CL-2.0T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_982251ea1d3c60e5.jpg?v=1790674561"},{"product_id":"mercedes-benz-cls450-c218-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz CLS450 C218 catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz CLS450 C218\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz CLS450 C218\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726149820675,"sku":"MB-CLS450C2-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_a9e2fae239c53b8d.jpg?v=1790674638"},{"product_id":"mercedes-benz-cls53-3-0t-2018-catback-titanium-sport-exhaust-system","title":"Mercedes-Benz CLS53 3.0T 2018 catback Titanium Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz CLS53 3.0T 2018\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Catback Performance Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing-Grade Titanium Alloy Catback Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e Send vehicle details to customer service after order placement\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Year:\u003c\/strong\u003e Confirm exact vehicle year before purchase\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Process:\u003c\/strong\u003e High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Gain:\u003c\/strong\u003e Reduced exhaust backpressure, improved exhaust flow\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrade Effect:\u003c\/strong\u003e Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Recommendation:\u003c\/strong\u003e Professional installation highly suggested\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCustom Service:\u003c\/strong\u003e Free laser logo engraving\u003c\/p\u003e\n\u003cp\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact:\u003c\/strong\u003e +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/p\u003e\n\u003cp\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Titanium Alloy Construction\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eDual-Side Welding Technology Craftsmanship\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz CLS53 3.0T 2018\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/p\u003e\n\u003cp\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/p\u003e\n\u003cp\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/p\u003e\n\u003cp\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/p\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726156046595,"sku":"MB-CLS5330T-3.0T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_35a8791b412ac43f.jpg?v=1790674731"},{"product_id":"mercedes-benz-cls550-4-7t-w218-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz CLS550 4.7T W218 catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz CLS550 4.7T W218\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz CLS550 4.7T W218\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726162075907,"sku":"MB-CLS55047-4.7T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_0333d856df212c53.jpg?v=1790674813"},{"product_id":"mercedes-benz-cls63-w218-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz CLS63 W218 catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz CLS63 W218\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz CLS63 W218\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726168269059,"sku":"MB-CLS63W21-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_481371b8c54b7b98.jpg?v=1790674900"},{"product_id":"mercedes-benz-c300-w205-2-0t-catback-titanium-sport-exhaust-system","title":"Mercedes-Benz C300 W205 2.0T catback Titanium Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz C300 W205 2.0T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Catback Performance Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing-Grade Titanium Alloy Catback Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e Send vehicle details to customer service after order placement\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Year:\u003c\/strong\u003e Confirm exact vehicle year before purchase\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Process:\u003c\/strong\u003e High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Gain:\u003c\/strong\u003e Reduced exhaust backpressure, improved exhaust flow\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrade Effect:\u003c\/strong\u003e Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Recommendation:\u003c\/strong\u003e Professional installation highly suggested\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCustom Service:\u003c\/strong\u003e Free laser logo engraving\u003c\/p\u003e\n\u003cp\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact:\u003c\/strong\u003e +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/p\u003e\n\u003cp\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Titanium Alloy Construction\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eDual-Side Welding Technology Craftsmanship\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz C300 W205 2.0T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/p\u003e\n\u003cp\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/p\u003e\n\u003cp\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/p\u003e\n\u003cp\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/p\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726174789891,"sku":"MB-C300W205-2.0T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_8c0b37fd2c37b81d.jpg?v=1790674990"},{"product_id":"mercedes-benz-e53-w213-3-0t-catback-titanium-sport-exhaust-system","title":"Mercedes-Benz E53 W213 3.0T catback Titanium Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz E53 W213 3.0T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Catback Performance Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing-Grade Titanium Alloy Catback Exhaust\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e Send vehicle details to customer service after order placement\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Year:\u003c\/strong\u003e Confirm exact vehicle year before purchase\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Premium Titanium Alloy (Lightweight, Fast Heat Dissipation, High Temperature Resistant, Corrosion Proof)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Custom Color: Physical thermal coloring (Blue, Gold, Purple, Raw Titanium)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Process:\u003c\/strong\u003e High-temperature tension welding, internal and external double-layer full weld, crack-proof and ultra-durable\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct OEM plug-and-play replacement, no cutting or welding required\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Gain:\u003c\/strong\u003e Reduced exhaust backpressure, improved exhaust flow\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrade Effect:\u003c\/strong\u003e Faster turbo response, higher engine efficiency, deeper and more penetrating exhaust sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Recommendation:\u003c\/strong\u003e Professional installation highly suggested\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCustom Service:\u003c\/strong\u003e Free laser logo engraving\u003c\/p\u003e\n\u003cp\u003eLifespan \u0026amp; Warranty: 2-year official warranty, over 10-year service life\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact:\u003c\/strong\u003e +86 18924479531 (WeChat \/ WhatsApp \/ Kakao Talk)\u003c\/p\u003e\n\u003cp\u003ePremium Titanium Alloy Valved Exhaust System — The Ultimate Choice for Lightweight Performance, Durability \u0026amp; Resonant Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Titanium Alloy Construction\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eDual-Side Welding Technology Craftsmanship\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation, easily switching between quiet and sport modes.\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points, intelligently matching different driving habits.\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eBenefiting from the smooth pipe body and excellent thermal conductivity of titanium alloy, the exhaust flow is more unobstructed with lower exhaust resistance.\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals, low noise and no harsh sound.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\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\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz E53 W213 3.0T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — professional titanium alloy processing workshop, strict double-side welding process inspection, full quality control, competitive pricing\u003c\/p\u003e\n\u003cp\u003eWide vehicle compatibility with custom titanium exhaust solutions available\u003c\/p\u003e\n\u003cp\u003ePremium titanium alloy material — ultra-light, high-temperature resistant, anti-oxidation, never rust, durable for years\u003c\/p\u003e\n\u003cp\u003eExquisite double-side tension welding craftsmanship — stable structure, no air leakage, no fracture, long service life\u003c\/p\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726183112963,"sku":"MB-E53W213-3.0T-TI-V-CB","price":2238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_c66a3756449480fc.jpg?v=1790675084"},{"product_id":"mercedes-benz-e53-w213-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz E53 W213 catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz E53 W213\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz E53 W213\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726191534339,"sku":"MB-E53W213-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_0e601d9fcd459522.jpg?v=1790675177"},{"product_id":"mercedes-benz-w212-e550-catback-sus304-racing-grade-exhaust-system-76mm","title":"Mercedes-Benz W212 E550 catback SUS304 Racing Grade Exhaust System 76mm","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz W212 E550\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz W212 E550\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726198153475,"sku":"MB-W212E550-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_86deffd6b919c43b.jpg?v=1790675261"},{"product_id":"mercedes-benz-gl63-x166-5-5t-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz GL63 X166 5.5T catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz GL63 X166 5.5T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz GL63 X166 5.5T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726204150019,"sku":"MB-GL63X166-5.5T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_de27c0b8ce86c7b6.jpg?v=1790675354"},{"product_id":"mercedes-benz-glc300-x253-2-0t-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz GLC300 X253 2.0T catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz GLC300 X253 2.0T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz GLC300 X253 2.0T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726209097987,"sku":"MB-GLC300X2-2.0T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_004d39604ce2b551.jpg?v=1790675443"},{"product_id":"mercedes-benz-glc43-x253-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz GLC43 X253 catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz GLC43 X253\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz GLC43 X253\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726214766851,"sku":"MB-GLC43X25-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_8b5372266f332333.jpg?v=1790675513"},{"product_id":"mercedes-benz-glc63-4-0t-x253-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz GLC63 4.0T X253 catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz GLC63 4.0T X253\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz GLC63 4.0T X253\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726219583747,"sku":"MB-GLC6340T-4.0T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_16577fc8152e80bd.jpg?v=1790675602"},{"product_id":"mercedes-benz-gle450-w167-4-0t-2023-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz GLE450 W167 4.0T 2023 catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz GLE450 W167 4.0T 2023\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz GLE450 W167 4.0T 2023\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726222958851,"sku":"MB-GLE450W1-4.0T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_338c64d52344b90e.jpg?v=1790675662"},{"product_id":"mercedes-benz-gls450-x167-2022-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz GLS450 X167 2022 catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz GLS450 X167 2022\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz GLS450 X167 2022\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726225973507,"sku":"MB-GLS450X1-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_f73e0a3d02bb6494.jpg?v=1790675748"},{"product_id":"mercedes-benz-gls63-x166-5-5t-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz GLS63 X166 5.5T catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz GLS63 X166 5.5T\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz GLS63 X166 5.5T\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726230593795,"sku":"MB-GLS63X16-5.5T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_a6d07d6b1425aeb7.jpg?v=1790675832"},{"product_id":"mercedes-benz-amg-gt63s-x290-catback-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz AMG GT63S X290 catback SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz AMG GT63S X290\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz AMG GT63S X290\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726236852483,"sku":"MB-AMGGT63S-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_893f65cb8ae6c317.jpg?v=1790675925"},{"product_id":"mercedes-benz-amg-g63-w464-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz AMG G63 W464 catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz AMG G63 W464\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz AMG G63 W464\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49726244487427,"sku":"MB-AMGG63-SS-V-CB-AK","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_cecf9c0e3c61b3d4.jpg?v=1790730318"},{"product_id":"mercedes-benz-amg-g63-w464-axle-back-sus304-racing-grade-exhaust-system","title":"Mercedes-Benz AMG G63 W464 axle-back SUS304 Racing Grade Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz AMG G63 W464\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Axle-Back)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade axle-back Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz AMG G63 W464\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49734405456131,"sku":"MB-AMGG63-SS-V-AXB-AK-TIP","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_d4dc8facc5182e59.jpg?v=1790730392"},{"product_id":"mercedes-benz-g500-4-4t-w463b-catback-sus304-sport-exhaust-system","title":"Mercedes-Benz G500 4.4T W463B catback SUS304 Sport Exhaust System","description":"\u003carticle class=\"hmd-desc\"\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e HMD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercedes-Benz G500 4.4T W463B\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Variable-Valve Exhaust Syste(Catback)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Racing Grade catback Performance Exhaust pipe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e After placing your order, please send your vehicle details to customer service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e Please confirm exact model year before ordering\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Polished\/Brushed\/Sandblasting Stainless Steel, depending on version\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e 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\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWelding Method:\u003c\/strong\u003e TIG Hand Welded\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct OEM Replacement Plug And Play No Cut No Weld\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures Improve:\u003c\/strong\u003e Exhaust Flow and Reduce Backpressure\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModification results:\u003c\/strong\u003e Improve Turbo Response and Exhaust Efficiency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Professional installation recommended\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogo Customization:\u003c\/strong\u003e Free Laser Logo Engraving\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Year\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlace of Origin:\u003c\/strong\u003e Made in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact (WeChat\/WhatsApp\/kakao Talk):\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003cp\u003eStainless Steel Valved Exhaust System — The Smart Choice for Performance \u0026amp; Sound\u003c\/p\u003e\n\u003ch3\u003e1. Product Overview\u003c\/h3\u003e\n\u003ch3\u003eWhat is a Valved Exhaust System?\u003c\/h3\u003e\n\u003cp\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\/p\u003e\n\u003cp\u003eIt Solves the Dilemma of Traditional Exhausts:\u003c\/p\u003e\n\u003cp\u003eClosed-Loop\/Chambered— Base torque is sufficient, but exhaust flow becomes restricted at high RPM, limiting power output.\u003c\/p\u003e\n\u003cp\u003eStraight-Through— Strong horsepower at high RPM, yet noticeable low-end torque loss with loud noise.\u003c\/p\u003e\n\u003cp\u003eOur Valved System Combines the Best of Both Worlds:\u003c\/p\u003e\n\u003cp\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.\u003c\/p\u003e\n\u003ch3\u003e2. Key Product Advantages\u003c\/h3\u003e\n\u003ch3\u003ePremium Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eCrafted from high-grade stainless steel (sus304), our exhaust systems offer exceptional heat and corrosion resistance, ensuring long-term stability under extreme exhaust temperatures. sus304 grade withstands up to 1050°C, with precise wall thickness control for optimal weight reduction.\u003c\/p\u003e\n\u003ch3\u003eFlexible Control Options\u003c\/h3\u003e\n\u003cp\u003eRemote Control Mode— Switch valve states with the included remote control for instant sound transformation\u003c\/p\u003e\n\u003cp\u003eOEM Control Mode—The system automatically adjusts based on RPM and throttle position, with user-defined activation points\u003c\/p\u003e\n\u003ch3\u003eDual Enhancement – Performance \u0026amp; Sound\u003c\/h3\u003e\n\u003cp\u003eValve Closed—Deep, mellow tone (~80-85 dB), near-stock level, ideal for city commuting and highway cruising\u003c\/p\u003e\n\u003cp\u003eValve Open—Unleashes an aggressive, high-pitched roar with sharper throttle response and smoother high-RPM power delivery\u003c\/p\u003e\n\u003ch3\u003eBolt-on \/ Direct-fit Installation\u003c\/h3\u003e\n\u003cp\u003eDesigned for direct bolt-on fitment with no cutting or welding required. 100% reversible for quick, hassle-free installation.\u003c\/p\u003e\n\u003ch3\u003e3. Application Scenarios\u003c\/h3\u003e\n\u003ch3\u003eDaily Commute\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eQuiet and comfortable with near-stock exhaust volume — perfect for city driving and highway cruising.\u003c\/p\u003e\n\u003ch3\u003eWeekend Canyon Runs \/ Track Days\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eUnleash the full potential of your engine with sharp high-RPM response and a roaring exhaust note — making every drive an exhilarating experience.\u003c\/p\u003e\n\u003ch3\u003eLate-night Returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Closed\u003c\/p\u003e\n\u003cp\u003eOne-touch switch to quiet mode — no more neighbor complaints during late-night arrivals.\u003c\/p\u003e\n\u003ch3\u003eCar Shows \/ Meetups\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eValve:\u003c\/strong\u003e Open\u003c\/p\u003e\n\u003cp\u003eAggressive sound that turns heads and showcases your unique taste in automotive modification.\u003c\/p\u003e\n\u003ch3\u003e4. Product List\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Mercedes-Benz G500 4.4T W463B\u003c\/p\u003e\n\u003cp\u003e(If you are unsure whether this product is compatible with your vehicle, please contact customer service.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWireless Controller Set:\u003c\/strong\u003e 1 set\u003c\/p\u003e\n\u003ch3\u003eScrews and hardware\u003c\/h3\u003e\n\u003ch3\u003e5. Why Choose Us?\u003c\/h3\u003e\n\u003cp\u003eIn-house factory production — quality controlled, competitive pricing\u003c\/p\u003e\n\u003ch3\u003eWide vehicle compatibility with custom options available\u003c\/h3\u003e\n\u003ch3\u003ePremium stainless steel — durable and rust-proof\u003c\/h3\u003e\n\u003ch3\u003eComprehensive after-sales support\u003c\/h3\u003e\n\u003ch3\u003eOEM\/ODM orders welcome\u003c\/h3\u003e\n\u003ch3\u003e6. Contact Us\u003c\/h3\u003e\n\u003cp\u003eInterested in learning more or requesting a custom quote? Reach out to us\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003email:\u003c\/strong\u003e OUCHIEXHAUST009@gmail.com\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhatsApp\/kakao Talk:\u003c\/strong\u003e +86 18924479531\u003c\/p\u003e\n\u003c\/article\u003e","brand":"HMD Performance Exhaust","offers":[{"title":"Default Title","offer_id":49734406373635,"sku":"MB-G50044T-4.4T-SS-V-CB","price":1194.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/files\/img_fe72584794b3e9a7.jpg?v=1790730433"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3084\/4675\/collections\/31_71d2f94a-2a80-4161-b746-c6d023927731.jpg?v=1710912220","url":"https:\/\/www.hmdexhaust.com\/collections\/benz.oembed","provider":"HMD Performance Exhaust","version":"1.0","type":"link"}