2 - 12 304 Stainless Steel Construction This cat - back exhaust system is constructed of 2 - 12 mandrel - bent 304 stainless steel tubing for maximum strength and durability. High - Flow 304 Stainless Steel Mufflers This system features high - flow 304 stainless steel mufflers, producing a smooth sound. Quad 3 - 12 Diameter Black Exhaust Tips Finishing off this exhaust system are quad 3 - 12 diameter black stainless steel clamp - on exhaust tips. The tips features a laser etched aFe POWER logo for a unique style. Installation Utilizing factory style hangers this system is a direct bolt - on system, which requires no cutting or modifications for a hassle - free installation. 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. Emissions Disclaimer This product does not require a CARB EO. aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.