Audi S5 B9 Sport Diff models without Brace Bars - Resonated (Quieter) Cat-Back Exhaust System with Quad Black Oval Trims tiguanmk1 The non-resonated sports exhaust is

The non-resonated sports exhaust is sold for motorsport and off road use only

it is then directed through the massive 3

5" Monster downpipe

once the module is installed it will default valve behaviour to be as follows

This is for 5 Litres

Audi S5 B9 Sport Diff models without Brace Bars - Resonated (Quieter) Cat-Back Exhaust System with Quad Black Oval Trims tiguanmk1 The non-resonated sports exhaust isOur 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