aFe LARGE BORE HD 4in 409-SS DPF-Back Exhaust w/Black Tip 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 Large Bore-HD exhaust system is constructed of 5" mandrel-bent 409 stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's. 6" Diameter Black Intercooled Tip: Finishing off the exhaust is a 6" 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. Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Black Tip GM Diesel Trucks 17-19 V8-6.6L (td) L5P 2017-2019 Chevrolet Silverado 2500 HD (Liter: 6.6 & Cylinder: 8 & Block: V); 2017-2019 GMC Sierra 2500 HD (Liter: 6.6 & Cylinder: 8 & Block: V); 2017-2019 Chevrolet Silverado 3500 HD (Liter: 6.6 & Cylinder: 8 & Block: V); 2017-2019 GMC Sierra 3500 HD (Liter: 6.6 & Cylinder: 8 & Block: V) Fits, Fitments 2017 Chevrolet Silverado 2500 HD High Country 2017 Chevrolet Silverado 2500 HD LT 2017 Chevrolet Silverado 2500 HD LTZ 2017 Chevrolet Silverado 2500 HD WT 2017 Chevrolet Silverado 3500 HD High Country 2017 Chevrolet Silverado 3500 HD LT 2017 Chevrolet Silverado 3500 HD LTZ 2017 Chevrolet Silverado 3500 HD WT 2017 GMC Sierra 2500 HD Base 2017 GMC Sierra 2500 HD Denali 2017 GMC Sierra 2500 HD SLE 2017 GMC Sierra 2500 HD SLT 2017 GMC Sierra 3500 HD Base 2017 GMC Sierra 3500 HD Denali 2017 GMC Sierra 3500 HD SLE 2017 GMC Sierra 3500 HD SLT 2018 Chevrolet Silverado 2500 HD High Country 2018 Chevrolet Silverado 2500 HD LT 2018 Chevrolet Silverado 2500 HD LTZ 2018 Chevrolet Silverado 2500 HD WT 2018 Chevrolet Silverado 3500 HD High Country 2018 Chevrolet Silverado 3500 HD LT 2018 Chevrolet Silverado 3500 HD LTZ 2018 Chevrolet Silverado 3500 HD WT 2018 GMC Sierra 2500 HD Base 2018 GMC Sierra 2500 HD Denali 2018 GMC Sierra 2500 HD SLE 2018 GMC Sierra 2500 HD SLT 2018 GMC Sierra 3500 HD Base 2018 GMC Sierra 3500 HD Denali 2018 GMC Sierra 3500 HD SLE 2018 GMC Sierra 3500 HD SLT 2019 Chevrolet Silverado 2500 HD High Country 2019 Chevrolet Silverado 2500 HD LT 2019 Chevrolet Silverado 2500 HD LTZ 2019 Chevrolet Silverado 2500 HD WT 2019 Chevrolet Silverado 3500 HD High Country 2019 Chevrolet Silverado 3500 HD LT 2019 Chevrolet Silverado 3500 HD LTZ 2019 Chevrolet Silverado 3500 HD WT 2019 GMC Sierra 2500 HD Base 2019 GMC Sierra 2500 HD Denali 2019 GMC Sierra 2500 HD SLE 2019 GMC Sierra 2500 HD SLT 2019 GMC Sierra 3500 HD Base 2019 GMC Sierra 3500 HD Denali 2019 GMC Sierra 3500 HD SLE 2019 GMC Sierra 3500 HD SLT