Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System

4" 409 Stainless Steel Construction: This DPF-back exhaust system is constructed of 4" mandrel-bent 409 stainless steel tubing for maximum strength and durability. Dual 5" Diameter Polished Intercooled Exhaust Tips: Finishing off this exhaust system are dual 5" diameter polished 304 stainless steel intercooled clamp-on exhaust tips. The tips features an aFe POWER logo plate riveted on for a unique style. Installation: Some cutting will 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. Integrated Mitered Merge Collector: A mitered merge collector is used to decrease turbulence and increase exhaust velocity resulting in increased horsepower, torque and improved throttle response. 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. Wheelbase Fitment: Double Cab / Short-Bed - 149.4" Wheelbase Crew Cab / Short-Bed - 158.9" Wheelbase Double Cab / Long-Bed - 162.4" Wheelbase Crew Cab / Long-Bed - 172" Wheelbase aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility. Emissions Disclaimer This product does not require a CARB EO#. Instructions