The AFE Saturn 4S Down-Pipe Back Exhaust System is a top-of-the-line aftermarket upgrade engineered to elevate the exhaust flow of vehicles for efficiency in race-inspired applications. The resulting increased exhaust flow provides an excellent horsepower and torque boost as well as a lowered engine EGT. Made from mandrel-bent 409 stainless steel tubing, the Saturn 4S Down-Pipe Back Exhaust System fits multiple cab configurations and utilizes OE factory mounting units to certify a hassle-free installation.

Equipped with a muffler delete pipe for optimum flow and an aggressive sound, aFe also offers a wide variety of Saturn 4S Down-Pipe Back Exhaust System to certify a precise fit to different vehicle year and models. Advanced Flow Engineering, Inc. (aFe) has two decades of experience in designing and producing high flow, high-performance air filters and intake systems for the automotive industry. All aFe products have gone through the same rigorous and meticulous design and manufacturing process to ensure that they not only satisfy and even exceed the most stringent industry standards but also to ensure that they perform effectively even during the most demanding driving conditions.

Advanced Flow Engineering, Inc. (aFe) is a globally-renowned designer and manufacturer of aftermarket performance parts such as air filters and air intake systems. A go-to and often sought brand by the custom builder and race enthusiast, the company was founded in 1999 to fill a void in the automotive aftermarket industry - the need for high-performance air filters. Using innovative designs and state-of-the-art methodologies, aFe succeeded and providing top-of-the-line air filters that can perform to the highest standard even during the most challenging driving conditions.

Over the years, aFe has ventured and produced high-end cold air intake systems, high-performance direct fit and racing air filters, exhaust systems, intercoolers, turbochargers, electronic programmers, diesel fuel systems, and throttle body spacers. As of today, the company's headquarters and manufacturing facilities are located in Corona, California, USA.