aFe Power Gas Cat-Back Exhaust System for GMC Sierra 2500 HD 2020 - 2021

4" 409 Stainless Steel Construction: This cat-back exhaust system is constructed of 4" mandrel-bent 409 stainless steel tubing for maximum strength and durability.High-Flow 409 Stainless Steel Muffler: This system features a high-flow 409 stainless steel muffler, producing a deep sound.5" Diameter Black Intercooled Exhaust Tip: Finishing off this exhaust system is a 5" diameter black 409 stainless steel intercooled clamp-on exhaust tip. The tip features an aFe POWER logo plate riveted on for a unique style.Deep Sound: This system produces a deep sound unleashing all available horsepower and torque.Installation: Utilizing a factory style flange and hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation.Computer-Aided Design: Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment.MIG-Welded: 100% MIG-Welded for race-proven strength and durability.Fitment Note: Regular Cab/Long Bed-141. 5" Wheelbase Extended Cab/Short Bed-162. 5" Wheelbase Crew Cab/Short Bed-172" WheelbaseEmissions Disclaimer: This product does not require a CARB EO#.aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.