Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-90 Cerakote Black Trims Trackslag 825” gauge depth

825” gauge depth

The quality of the product is made to reduce the density of OEM catalysts and be able to maintain emission regulations with daily usage

has a sportier exhaust note

For those looking to take the style upgrade a stage further

these jugs are made to take abuse and keep performing

Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-90 Cerakote Black Trims Trackslag 825” gauge depthOur 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