Looking to boost your truck's performance? Check out the AFE 49-44126 Large Bore HD 4 Inch Dual Filter-Back Exhaust System. This system is CAD engineered for factory fitment on the L5P Duramax 2020-2022, and features 4" mandrel-bent 409 stainless steel tubing and dual 5" diameter intercooled exhaust tips in black or polished 304 stainless steel. All necessary hardware is included for a hassle-free installation. Plus, the factory style hangers make it easy to put in place. Get the power and performance you want with the AFE 49-44126 Large Bore HD 4 Inch Dual Filter-Back Exhaust System.