. Upgrade your Milltek Valved & Non-Resonated (Louder) Cat-Back Exhaust Systems today and experience the full benefits of a custom exhaust system. This is the perfect solution for Audi RS4 B7 (2006 - 2008) 4.2 V8 Saloon Avant and Cabriolet owners who want to take their vehicle to the next level. Our Cat-Back system offers improved performance, an increase in sound, and a more aggressive tone. Get yours today and experience the difference!
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Cat & Filter Back Systems
Effortlessly Explore the Best Aftermarket Exhaust Solutions for Your Vehicle.