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.
The amount of horsepower gained from installing a cat-back exhaust system varies by vehicle and the system’s design. However, when combined with other performance enhancements, the gains can be more significant. The primary goal of a cat-back exhaust is to reduce back pressure, allowing your engine to breathe better and operate more efficiently. The factory exhausts come in mandrel bent tubes made of stainless steel or aluminized steel. Besides offering longer durability, the construction also ensures there’s free flow of gases. To improve this, you can opt to replace some parts of the exhaust system using aftermarket performance exhaust systems.
There is a range of muffler types you can choose from with a cat back exhaust system with most people opting for a glasspack or straight-through muffler. Both of these options are designed to work well within the system to reduce back pressure. Deciding to purchase a performance exhaust system for your car is no easy task.
These two work together to offer better flow and allow the system to breathe better. We are one of few brands that own our factory thus enabling us full control over the manufacturing process, selection of raw materials, and construction techniques. Install your IE catback without any permanent modifications or installation hassles. The installation process is straightforward and accomplished with standard mechanic tools.
It is called a "catback" system because it starts at the catalytic converter, which is located in the middle of the exhaust system, and continues to the tailpipe. With an aftermarket performance exhaust system from CORSA, you'll be able to lose yourself in rich, deep exhaust notes you can feel in your chest with every drive. It doesn't matter if you're behind the wheel of a