aFe Large Bore HD DPF-Back Exhaust for 17 GM Duramax V8-6.6L L5P 5in 409 SS w/Black Tip

aFe Large Bore HD DPF-Back Exhaust (49-44085-B) for 2017 GM Duramax 6.6L L5P offers 5in 409 SS tubing with a 6in black tip. Designed to increase flow and reduce exhaust gas temperatures, the system includes mandrel-bent tubing with smooth bends for low turbulence. OE-style bayonet hangers maintain stability under high heat, and band clamps ensure a leak-free 360° seal. The 6in black slash-cut tip features intercooling vents and a laser-cut aFe logo for added style and function. Key Features : Fits 2017 GM Duramax V8-6.6L (L5P) diesel trucks 5in mandrel-bent 409 stainless steel for maximum flow Includes 6in black stainless steel tip with intercooling vents OE-style bayonet hangers for a stable fit during vibrations Leak-free 360° sealing with premium band clamps Reduces EGTs while increasing horsepower and torque Direct fit using factory mounting locations Installation Instructions