3 409 Stainless Steel Construction This muffler upgrade is constructed from 3 mandrel - bent 409 stainless steel tubing for maximum strength and durability. High - Flow 409 Stainless Steel Muffler This system features a high - flow 409 stainless steel muffler, producing a deep sound. Installation Utilizing factory style flange and hangers this system is a direct bolt - on system, some cutting is required. 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. Fitment Note Will fit both the factory single and the factory dual exhausts. Emissions Disclaimer This product does not require a CARB EO. aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.