5 Aluminized Steel Construction This DPF - back exhaust system is constructed of 5 mandrel - bent aluminized steel tubing for maximum strength and durability. 7 Diameter Polished Exhaust Tip Finishing off this exhaust system is a 7 diameter polished stainless steel clamp - on exhaust tip. The tip features an aFe POWER logo plate riveted on 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. Fitment Note This product only fits Crew Cab, Long Bed (8' Box) 169 wheelbase models. Emissions Disclaimer This product does not require a CARB EO. aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.