Advanced 3D scanning tools and cutting-edge software provide our engineers with a high-resolution digital model of the Audi B9 S4 chassis. This data is then used to maximize the exhaust size for flow and optimize all available space for the perfect catback fitment. CORSA branded exhaust systems are backed by a Limited Lifetime warranty for as long as you own your vehicle with proof of purchase. The new exhaust sounds perfect, a marked improvement over stock. It is not too loud - I use the car as a daily driver and drive in capital beltway traffic.

Choose ARK and you will not be disappointed with the sound and quality of our products. Installing a catback exhaust system is a relatively easy task. However, it is important to follow the instructions that come with the system. If you are not comfortable installing the system yourself, you can take it to a qualified mechanic. Get an exclusive inside look at what we are doing on a daily basis with Banks’ Insider News.

A catback exhaust system works by replacing the muffler and tailpipe with a more free-flowing design. Take full advantage of everything we have to offer with an upgraded CORSA exhaust. CORSA full exhaust systems help optimize performance and increase sound and will make heads turn in your direction every time you pass by. With our patented RSC® technology and unmatched customer experience, you’ll see why we’ve been leaders of our industry for over 25 years. View our entire selection today, and find the CORSA exhaust that will leave your rides unrecognizable. If you have any questions about our high-performance exhausts, don’t hesitate to&nbsp