2-1/2" Stainless Steel Construction: This exhaust exhaust system is constructed of 2-1/2" mandrel-bent stainless steel tubing for maximum strength and durability. 3-1/2" Diameter Black Exhaust Tip: Finishing off this exhaust system is a 3-1/2" diameter black 304 stainless steel exhaust tip with laser etched DIRT RUNNER logo. Tip has accommodation for factory spark arrestor. Installation: Utilizing a factory style flange and hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation. High-Flow High-Temperature Black Muffler: This system features a high-flow high-temperature black muffler and tuned helmholtz resonator, producing a powerful sound. The muffler has a high-temperature black finish for ultimate corrosion resistance. Heat Shield: Incorporates a laser cut high-temperature brushed finish heat shield with an aFe POWER logo. Computer-Aided Design: Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment. MIG-Welded: 100% MIG-Welded for race-proven strength and durability. aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.