Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-90 Titanium Trims AEM All relevant fittings and gaskets

All relevant fittings and gaskets are supplied (except turbo gasket)

This BMW 420D Gran Coupe performance exhaust is made in 3"/76

explains "The sound we have managed to achieve from this conversion is totally in line with the marque's core values as an unobtrusive and classy drive

which will pass these checks

Fitment to later M140i models which have the PPF filter as standard will require basic engine tuning at time of fitment to cancel the EML light

Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-90 Titanium Trims AEM All relevant fittings and gasketsOur 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