It is important to note, however, that going too large may cause a dip in performance when gases pile up and exit the system slower resulting in torque, rpm, and horsepower loss. After the emissions are channeled out from the cylinders by the exhaust manifold, they are deposited into different catalytic converters. The IE Catback Exhaust System for your Audi B9/B9.5 S4 incorporates our in-house engineered DroneTrap technology to deliver a truly aggressive exhaust note without any annoying drone or rasp. Engineered with cutting-edge design features, including mandrel-bent stainless steel, TIG welding, multi-point reinforcements, and oversized quad tips. A catback exhaust system is a type of aftermarket exhaust system that replaces the muffler and tailpipe of a vehicle. It is called a “catback” system because it starts at the catalytic converter, which is located in the middle of the...

The purchasers are entirely responsible for informing themselves of applicable California laws and to comply with those laws. Mishimoto exhaust systems are designed for a bolt-in installation. From classic American muscle cars to the newest off-road capable rigs, we’ve got you covered. Browse our most popular performance car, truck and SUV exhaust systems to find the ultimate exhaust experience for your ride.

The cat back system’s pipes have a larger diameter than a standard set. So, your vehicle will get to perform better at a fraction of the work it outputs. An&nbsp