Audi S4 B9 Non sport Diff models - Non-Resonated (Louder) Cat-Back with Quad Carbon Trims Part_Axle Back the F20 M135i

the F20 M135i

This BMW M3 performance exhaust is made in 3"/76

Please see related products for the matching rear diffuser panel - save 30% on the panel (part code: RP01) when purchased with this exhaust (retail customers only)

On the static sound test

Audi S4 B9 Non sport Diff models - Non-Resonated (Louder) Cat-Back with Quad Carbon Trims Part_Axle Back the F20 M135iOur 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 tone. All our products are made from 304L Aircraft Grade stainless steel. This quality material will ensure that your Cat Back system