aFe Apollo GT Series 4in 409SS Cat-Back 20-21 GM 2500/3500HD V8-6.6L L8T - Black Tip

This 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.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2020-2023	Chevrolet	Silverado 2500 HD	Custom
2020-2023	Chevrolet	Silverado 2500 HD	High Country
2020-2023	Chevrolet	Silverado 2500 HD	LT
2020-2023	Chevrolet	Silverado 2500 HD	LTZ
2020-2023	Chevrolet	Silverado 2500 HD	WT
2020-2023	Chevrolet	Silverado 3500 HD	High Country
2020-2023	Chevrolet	Silverado 3500 HD	LT
2020-2023	Chevrolet	Silverado 3500 HD	LTZ
2020-2023	Chevrolet	Silverado 3500 HD	WT
2020-2023	GMC	Sierra 2500 HD	AT4
2020-2021	GMC	Sierra 2500 HD	Base
2020-2023	GMC	Sierra 2500 HD	Denali
2022-2023	GMC	Sierra 2500 HD	Pro
2020-2023	GMC	Sierra 2500 HD	SLE
2020-2023	GMC	Sierra 2500 HD	SLT
2020-2023	GMC	Sierra 3500 HD	AT4
2020-2021	GMC	Sierra 3500 HD	Base
2020-2023	GMC	Sierra 3500 HD	Denali
2022-2023	GMC	Sierra 3500 HD	Pro
2020-2023	GMC	Sierra 3500 HD	SLE
2020-2023	GMC	Sierra 3500 HD	SLT