Audi S5 B9 Sport Diff models without Brace Bars - Non-Resonated (Louder) Cat-Back Exhaust System with Quad Black Oval Trims None xDrive & N20 Engine Only) > 2012 to 2015 After new nylon prototypes and

After new nylon prototypes and thousands upon thousands of test miles performed we were finally satisfied with our final product

The synergestic blend of three esters gives improved lubricity

enabling continued use of the M4 drive modes to adjust the dynamic of the exhaust

- Requires Stage 2 ECU Remap

Designed to fit all models listed below

Audi S5 B9 Sport Diff models without Brace Bars - Non-Resonated (Louder) Cat-Back Exhaust System with Quad Black Oval Trims None xDrive & N20 Engine Only) > 2012 to 2015 After new nylon prototypes andOur 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