Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-100 Polished Trims Audi > RS4 > B8 4.2 FSI quattro Avant > 2012 to 2015 designed as a direct replacement

designed as a direct replacement for the original system

Using a Non-Valved exhaust will not harm the running of your vehicle

although it is possible for these to be fitted to earlier 1

They are made to maintain an enlarged diameter through the system to best optimise the gas-flow throughout the system

sprints and hill climbs and proven in race motorcycles with wet clutches

Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-100 Polished Trims Audi > RS4 > B8 4.2 FSI quattro Avant > 2012 to 2015 designed as a direct replacementOur 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