FAQ

Frequently Asked Questions

Everything you need to know before ordering from HMD Performance Exhaust. If your question is not answered below, contact us and we will reply within one business day.

Fitment & Compatibility

Will this system fit my car?
Yes — if your vehicle is listed in the product title and description. Every system is built for a specific chassis and engine. If you are not sure, send us your year, make, model and engine code (or your VIN) before ordering and we will confirm compatibility for you.

Is it a direct bolt-on fit?
Our catback and axle-back systems are designed as direct replacements using the factory mounting points. Downpipes, headers and manifolds may require professional installation and, on some vehicles, an ECU tune. Any such requirement is stated on the product page.

Materials & Sound

What are your systems made of?
We use T304 (SUS304) stainless steel and grade 1 titanium, with mandrel-bent piping and TIG-welded seams. Full specifications are listed on each product page.

Valved or non-valved — which should I choose?
A valved system lets you switch between a quiet and an aggressive tone, normally with a remote or an OEM-style actuator, so you can keep the car civil on a daily commute. A non-valved system has a fixed, louder tone and fewer parts to install.

Orders & Lead Time

How long until my order ships?
In-stock items ship within 1–3 business days. Built-to-order and custom systems are fabricated after your order is placed and typically ship within 7–15 business days. Tracking is emailed as soon as your order leaves our workshop.

Can I change or cancel my order?
Orders can be cancelled free of charge within 24 hours of purchase, provided production has not started. Once fabrication has begun, a custom system can no longer be cancelled.

Shipping

How much is shipping?
Shipping is free. There is no minimum order value, no weight limit and no destination surcharge for any country we serve. The price shown at checkout is the final amount you pay — no shipping fee is added at any stage.

Which countries do you ship to?
We currently ship to the United States, Canada, the United Kingdom, Germany, France, Italy, the Netherlands, Spain, Australia and New Zealand. Exhaust systems travel in oversized, fully insured cartons with tracking.

Do I pay import duties or taxes?
Import duties, VAT and customs clearance charges are set by your own country and are the buyer’s responsibility. They are not included in the price of your order.

Returns & Warranty

What is your return policy?
You may return an unused item in its original packaging within 30 calendar days of delivery. The item must be uninstalled and unused, with all hardware, gaskets and clamps included. Custom made-to-order systems, catless downpipes and test pipes cannot be returned unless they are defective. Please contact us first to obtain an RMA number — returns sent without one will be refused. Return shipping is paid by the buyer and a 15% restocking fee applies to non-defective returns with opened packaging. Full terms are in our Refund & Return Policy.

How long does a refund take?
Once we receive and inspect your return we email you the result. Approved refunds are issued to your original payment method within 5–10 business days.

What if my order arrives damaged or defective?
Inspect your order on arrival and contact us within 7 days with your order number and photos. We will arrange a repair, a replacement or a full refund at our cost, including return postage.

Is there a warranty?
Yes. Our exhaust products are warranted against defects in materials and workmanship for 12 months from the date of delivery, under normal use. The warranty does not cover damage from improper installation, modification, racing or track use, normal wear, heat discolouration, or corrosion. See our Terms of Service for the full terms.

Compliance

Are these systems road legal where I live?
Our performance exhaust components are designed for off-road, racing and competition use unless stated otherwise. Catless downpipes, de-cat pipes and test pipes may not comply with emissions regulations in your state, province or country. You are responsible for confirming that a product is legal for your intended use and jurisdiction.