Audi RS4 B7 - V2 Valved Cat-Back with Active H Pipe and Cerakote Black Ovals Trackslag GPF-Back (Non-Resonated with Rear Box)

GPF-Back (Non-Resonated with Rear Box) Test Results:

Please note: Big boost pipe kit will NOT fit with 7 speed gearbox

A direct replacement for the OEM part

MK3 Leon & MK3 Octavia

One thing that can do is Improve the sound and rear end styling

Audi RS4 B7 - V2 Valved Cat-Back with Active H Pipe and Cerakote Black Ovals Trackslag GPF-Back (Non-Resonated with Rear Box)We have revised the stainless steel performance Cat Back system on one of Audis most renowned machines. Improving sound & aesthetics. Our range of Cat Back systems are perfectly suited to cater for anyone looking to improve their sound and aesthetics, designed as a direct replacement for the original system, available in multiple configurations enabling the owner to choose the increase in volume of their exhaust and or add a more suitably aggressive