Milltek Cat Back Exhaust Audi S4 4.2 V8 Quattro B7 Saloon / Sedan, Avant, and Cabriolet 04-09

Our range of exhaust 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 will last through any harsh conditions.