Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-90 Titanium Trims AEM explains "The sound we have

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

QTY 5 additional O-Rings for replacements during oil change services

This BMW M340i performance exhaust is made in 3

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

A common fault on the TFSI EA113 engines is the failure of the thermostat

Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-90 Titanium Trims AEM explains "The sound we haveOur 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