This cat-back exhaust system is constructed of 2-1/2 IN mandrel-bent 409 stainless steel tubing for maximum strength and durability. This system features a high-flow 409 stainless steel muffler, producing a throaty sound. This system produces a throaty sound unleashing all available horsepower and torque. 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. 100% MIG-Welded for race-proven strength and durability.