This product alters a factory emissions control device and does not meet current emission laws. For motorsport use only.
Fits:
- Audi RS4 B7 4.2 V8 Saloon, Avant and Cabriolet 2006 to 2008
The part is used to bypass the catalyst from the exhaust to create a ‘Decat’ or Sports Cat system. Eliminating the catalyst will greatly enhance the gas-flow and the performance, adding significant Hp to your vehicle by removing the density of the catalyst in which exhaust gases are pushed through.


