Audi S4 B9 Non sport Diff models - Non-Resonated (Louder) Cat-Back with Quad Titanium Trims Audi > Q8 > 50 TDI Quattro > 2019 and Later Choose from either resonated or

Choose from either resonated or louder non-resonated format

This is a replacement panel filter for multiple VAG vehicles

you can also install our Proram panel filter (Search PPF-1787) or our upcoming open cone intake kit

- Nortech tubular manifold (available on its own)

During the design stages

Audi S4 B9 Non sport Diff models - Non-Resonated (Louder) Cat-Back with Quad Titanium Trims Audi > Q8 > 50 TDI Quattro > 2019 and Later Choose from either resonated orOur 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