aFe Twisted Steel Down-Pipes are created to deliver the ideal balance of pure, race-inspired performance, in-cabin driving comfort and the excitement of exhaust sound and tone during normal cruising or aggressive hard throttle. They come with a massive, lightweight, 4 inch diameter, 304 stainless steel tube with a 300 CPSI, high-flow catalytic converter.

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.

California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.