Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-100 Polished Trims Model_JCW (F56 LCI 2) Facelift 2021> Fitment is for motorsport and

Fitment is for motorsport and off road use only

upgraded ceramic coated matt black 'Blackout' tailpipes are available

A new diverter valve should always be fitted

Improves performance and throttle response

Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-100 Polished Trims Model_JCW (F56 LCI 2) Facelift 2021> Fitment is for motorsport 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