Simple Installation: This DPF-back exhaust system uses factory mounting locations providing stability and hassle-free installation.OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time.Flow and Performance: This Large Bore-HD DPF-back exhaust system is constructed of 3" to 3-1/2" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's.5" Diameter Black Intercooled Tip: Finishing off the exhaust is a 5" diameter, black, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe POWER logo plate is riveted on for an aggressive style.Fitment Note: Crew Cab / 5'7" Bed (140" Wheelbase), Crew Cab / 6'4" Bed (149" Wheelbase), Quad Cab / 6'4" Bed (140" Wheelbase)Note: This system requires cutting behind the DPF unit.Emissions Disclaimer: This product does not require a CARB EO#.aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.