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.

To make a very long story short so far so good I’m happy with the product. I had 1 dinged tip out of the 4 that prob happened during shipping n y’all already have a new replacement tip on the way so customer service is great as well. Only thing I would change as previously stated would be a little more noise but again that wasn’t my main goal to being with. Hats off to what y’all do and please make more B9 Audi S4 parts n I’ll happily buy them. I regret not buying the IE intake but hey sometimes we all make poor decisions lol. Every vehicle-specific CORSA product is engineered and designed to match the unique properties of the vehicle it is designed for to deliver perfect fitment and performance.

Cat-back exhaust system kits come standard with tailpipes, a performance muffler and exhaust tips. The inclusion of our wider, mandrel-bent tailpipes means cat-back exhausts are your go-to for increasing your performance gains along with boosting your sound. While horsepower and torque gains vary from vehicle to vehicle, you can expect anywhere from a percent gain in horsepower and torque after installing a cat-back exhaust system.

All performance exhaust systems are designed with you in mind, and we cater to an ever-expanding range of vehicles. Milltek believes in continuous evolution, and their research &amp