This dpf-back exhaust system is constructed of 3 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. Quad 4" black 304 stainless steel exhaust tips replace the factory tips for an aggressive, custom sport truck look. This system produces a mild sound unleashing all available horsepower and torque. Some cutting may be required, see instruction sheet for further information. Utilizing factory style hangers this system mounts directly to factory mounting locations for a hassle-free installation. State-of-the-art computer-aided design technology is utilized for precise vehicle fitment. 100% MIG-Welded for race-proven strength and durability.