Questions & answers

A valvetronic exhaust has electronically controlled valves that open or close a path through the muffler. Closed, the car stays discreet; open, the full sound comes through. Depending on the vehicle the valves are switched by remote, app or the car's drive modes.

Each system is developed for specific vehicles. Send us the make, model, year and engine and we will confirm which system fits before you order.

Road legality depends on the country and the vehicle. In Germany an aftermarket exhaust needs valid approval documents (such as an EC type-approval or ABE) or an individual inspection. Ask us which documentation is available for your car before ordering.

A cat-back system replaces everything behind the catalytic converters — pipes, mufflers and tailpipes — and leaves the emissions hardware untouched. That makes it the most common choice for road cars.

Resonators are tuned to cancel the frequencies that cause drone at cruising speed, and with the valves closed the system stays calm on long drives.

We recommend installation by an authorised USUS dealer. Systems use the original mounting points, so a professional workshop can fit them without cutting or welding on the car.

Yes. Because the system bolts to the original mounting points, the factory exhaust can be refitted. Keep it if you plan to sell or lease-return the car.

Exhaust heat naturally tints bare stainless steel near the engine. Tailpipes keep their finish best when cleaned regularly with a non-abrasive metal cleaner once they are cool.

USUS systems are covered against manufacturing defects. See Returns & Warranty for the full terms, or ask your dealer.

Prices depend on the vehicle and configuration. Send a quote request with your car details and we will reply with the options and pricing.