Audi S4 B9 Non sport Diff models - Non-Resonated (Louder) Cat-Back with Quad Polished Trims M135i Sales Manager at Cobra Sport

Sales Manager at Cobra Sport says "The new Cobra Sport systems greatly improve the exhaust pitch and tone and add the sporty edge which was missing from the factory system

Engine Idle: Normal mode: 79dB / Sport mode: 83dB

the downpipe has however been designed for fitment in conjunction with an engine remap

Matched with the upgraded resonators and rear box

Audi S4 B9 Non sport Diff models - Non-Resonated (Louder) Cat-Back with Quad Polished Trims M135i Sales Manager at Cobra SportOur 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