Audi S4 B9 Non sport Diff models - Resonated Cat-Back with Quad Polished Trims Model_318D (E90) Saloon 05-11 Filter Material: 15mm Dual Layer

Filter Material: 15mm Dual Layer Foam

Filter Shape: Unique

We have a selection of parts that help you improve sound and allow exhaust gases to flow more freely

This part allows for increased potential airflow and slightly increased induction sound

This Audi A3 TFSI 3 door performance exhaust is made in 3"/76

Audi S4 B9 Non sport Diff models - Resonated Cat-Back with Quad Polished Trims Model_318D (E90) Saloon 05-11 Filter Material: 15mm Dual LayerOur 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