Fits: 2020–2023 Chevrolet Silverado 2500 HD 2020–2023 Chevrolet Silverado 3500 HD 2020–2023 GMC Sierra 2500 HD 2020–2023 GMC Sierra 3500 HD aFe49-44123-BCatbackThis cat-back exhaust system is constructed of 4" mandrel-bent 409 stainless steel tubing for maximum strength and durability. This system features a high-flow 409 stainless steel muffler, producing a deep sound. 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. This system produces a deep sound unleashing all available horsepower and torque. 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. Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment. 100% MIG-Welded for race-proven strength and durability.aFe Apollo GT exhaust systems are constructed of mandrel-bent 409 stainless steel and come complete with free-flowing muffler(s), OE-style bayonet hangers, and all necessary hardware for a hassle-free installation. Their smooth curves and large diameter tubes help reduce restriction and keep exhaust gas flowing smoothly for increased horsepower and torque. aFe Apollo GT cat-back exhaust systems are 100 percent MIG-welded for race-proven strength and durability and are finished with polished or black stainless steel exhaust tip(s) with a laser-cut aFe POWER badge for a custom look.