aFe Victory Series 4in 409 - SS DPF - Back Exhaust w Dual Polished Tips 2017 GM Duramax V8 - 6.6L(td) L5P

Simple Installation All systems use factory mounting locations providing stability and hassle - free installation. Leak - Free Seal High quality band clamps are included for a complete 360 degree sealing surface. 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 exhaust system is constructed of 4 mandrel - bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's. 5 Diameter Polished Intercooled Tips Finishing off the exhaust are 5 diameter, polished, stainless steel straight cut tips 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. Cutting stock exhaust is required.