Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-100 Polished Trims Audi > RS4 > B8 4.2 FSI quattro Avant > 2012 to 2015 Using a Non-Valved exhaust will

Using a Non-Valved exhaust will not harm the running of your vehicle

Thankfully the Cobra Sport development team have been able to rectify this with their GPF-back performance exhaust for the Cupra Formentor

sprints and hill climbs and proven in race motorcycles with wet clutches

They are made to maintain an enlarged diameter through the system to best optimise the gas-flow throughout the system

designed as a direct replacement for the original system

Audi S4/S5 B9 Non Sport Diff models - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-100 Polished Trims Audi > RS4 > B8 4.2 FSI quattro Avant > 2012 to 2015 Using a Non-Valved exhaust willOur 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