About HMD Performance Exhaust
HMD Performance Exhaust is the export brand of Ouchi Automotive Technology (Meizhou) Co., LTD, a China-based manufacturer that designs, fabricates and exports performance exhaust systems for super cars, sports cars and performance-oriented daily drivers. The same workshop that builds our catalogue systems handles the full chain — R&D, tooling, mandrel bending, TIG welding, valving and quality control — so fitment questions and production updates are answered by the people who actually built the system.
What we build
- Catback systems — the most common starting point, replacing everything from the catalytic converter back, with valved and non-valved options.
- Axle-back systems — a lighter, louder bolt-on package for super cars where the catalyst is already handled by the original system.
- Full systems and downpipes — for builds where the entire exhaust route needs to change, including high-flow 200-cell and 300-cell catalytic options.
- Two material families — T304 (SUS304) stainless steel for durability and value, and grade 1 titanium for weight reduction and the harder-edged high-rpm character that performance engines need.
Who we build for
Our catalogue covers 29 marques and more than 490 systems, from German performance sedans (BMW, Audi, Mercedes-AMG), to Japanese icons (Nissan GT-R, Toyota Supra, Honda Civic Type R), American muscle (Ford Mustang, Dodge Challenger, Corvette), and Italian and British exotica (Ferrari, Lamborghini, McLaren, Aston Martin, Porsche). We work with distributors and workshops as well as individual owners, and we ship worldwide with free shipping on every order.
Fitment comes first
No system is listed unless it is built for a specific chassis code. Before you order, send us your year, make, model and engine code (or your VIN) and we will confirm compatibility, material suitability and expected sound character — and tell you honestly if a cheaper configuration would serve you better.