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USD 454.09 474.99
Part #:

AFE 49-04085 ATLAS 5" Filter-Back Exhaust System

2017-2018 GM 6.6L Duramax L5P (All Crew Cabs)
Part #:
FROM 454.09
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Give your 2017-2018 GM 6.6L Duramax a custom look while enhancing exhaust flow with the AFE 49-04085 ATLAS 5" Filter-Back Exhaust System. Constructed from 5" mandrel-bent aluminized tubing, this kit uses high-quality band clamps and OE style bayonet hangers for secure fitment. This exhaust system utilizes factory mounting locations to provide a quick, hassle-free installation. Each kit includes your choice of a polished, or black powdercoated, intercooled tip with a laser cut stainless steel AFE power badge.

Simple Installation:
All systems use factory mounting locations providing stability and hassle-free installation.

Leak-Free Seal:
High quality band clamps are included for a complete 360 degree sealing surface.

OE Fit:
OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time.

Flow and Performance:
This Mach FORCE-Xp exhaust system is constructed of 5" mandrel-bent aluminized tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs.

6" Diameter Intercooled Tip:
Finishing off the exhaust is your choice of a black powdercoated, or polished6 " diameter, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style.


  • 5" Mandrel-Bent Aluminized Tubing
  • High Quality Band Clamps & OE Style Bayonet Hangers
  • Utilizes Factory Mounting Locations For Hassle-Free Installation

Fitment Guide:
Crew Cab/Short Bed, 6.6ft Bed, 153.7 Wheelbase
Crew Cab/Long Bed, 8ft Bed, 167.7 Wheelbase
Cutting the stock exhaust behind the DPF (Diesel Particulate Filter) is required for all cab configurations. All Crew Cabs applies to GM 2500/3500 pickups only. This system is not intended for Cab & Chassis models.

Product Options:
49-04085-B - Black Powdercoated Tip
49-04085-P - Polished Tip


  • Manufacturer Name AFE
  • Shipping Weight 47.00 lb.
  • Shipping Length 49 in.
  • Shipping Width 13 in.
  • Shipping Height 23 in.
  • Warranty Yes
  • Warranty Info 2 Year
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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