aFe® (20-21) Silverado/Sierra 2500/3500 Apollo GT Series 4" 409SS Cat-Back System (149.4”/159” Wheelbase)

  • Sale
  • Regular price $576.00

Compatible: (6.6L)

2020 - 2021 Chevy Silverado 2500/3500

2020 - 2021 GMC Sierra 2500/3500

Fitment Note:
Extended Cab/Short Bed - 149.4" Wheelbase
Crew Cab/Short Bed - 159" Wheelbase

Emissions Disclaimer:
This product does not require a CARB EO#.

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.

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.

100% MIG-Welded for race-proven strength and durability.

  • Constructed from 4" Mandrel-Bent 409 Stainless Steel Tubing
  • 5" Diameter Black 409 Stainless Steel Intercooled Clamp-On Exhaust Tip
  • Utilizes Factory Style Flange and Hangers for a Secure Fit
  • 100% MIG-Welded for Strength and Durability
  • All Necessary Hardware is Included for a Hassle-Free Installation



    Install Guide: