Audi S4/S5 B9 Sport Diff without Brace Bars - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-100 Burnt Titanium Trims q5 Using a Non-Valved exhaust will

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

GPF-Back (with Rear Box) Test Results:

*** Not compatible with vehicles which have additional sensor straight off the turbo and the larger turbo flange ***

This BMW M3 performance exhaust is made in 3"/76

Audi S4/S5 B9 Sport Diff without Brace Bars - Non-Resonated (Louder) Cat-Back Exhaust System with Quad GT-100 Burnt Titanium Trims q5 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