Audi S5 B9 Sport Diff models without Brace Bars - Resonated (Quieter) Cat-Back Exhaust System with Quad Black Oval Trims tiguanmk1 Sound - Engine at Idle:

Sound - Engine at Idle: 68

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

Interior sound example of BMW M235i Sport Exhaust (Cat back - non-resonated with de-cat)

The Cobra Sport system really improves the drivability of this car and takes it to the next level

The de-cat exhaust version is sold for motorsport and off road use only and will NOT be able to pass a UK MOT emissions test or police roadside checks

Audi S5 B9 Sport Diff models without Brace Bars - Resonated (Quieter) Cat-Back Exhaust System with Quad Black Oval Trims tiguanmk1 Sound - Engine at Idle:Our 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