2017-2019 Chevrolet Silverado 3500 HD - ATLAS 5 IN Aluminized Steel DPF-Back Exhaust System

Part#:
49-04085-P-1
Item Availability : Typically ships in 2-4 business days
$727.65 USD Save: $145.53 (20.00%) $582.12

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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 Polished Intercooled Tip:
Finishing off the exhaust is a 6" diameter, high luster polished, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut black powder-coated aFe Power logo plate is riveted on for an aggressive style

Fits:
17-19 Chevrolet Silverado HD 2500HD/3500HD V8-6.6L (td) Duramax
17-19 GM Sierra 2500HD/3500HD V8-6.6L (td) Duramax
17-19 GM Sierra 2500HD/3500HD Denali V8-6.6L (td) Duramax
Wheelbases:
Crew Cab/Short Bed, 6.6ft Bed, 153.7" Wheelbase
Crew Cab/Long Bed, 8ft Bed, 167.7" Wheelbase
Note:
Cutting the stock exhaust behind the DPF (Diesel Particulate Filter) is required for all cab configurations. (see instruction sheet for cut locations listed on all wheelbases applicable).

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

All aFe exhaust systems are engineered and manufactured in our Corona, California facility.
  • Instructions


  • Vehicle Applications

    Year Make Model SubModel Engine Fuel
    2017-2019Chevrolet Silverado 2500 HD Duramax V8 6.6L (td) Diesel
    2017-2019Chevrolet Silverado 3500 HD Duramax V8 6.6L (td) Diesel
    2017-2019GMC Sierra 2500 HD Duramax V8 6.6L (td) Diesel
    2017-2019GMC Sierra 3500 HD Duramax V8 6.6L (td) Diesel
More Information
Weight42.00 lbs
Parent Product TypePerformance Upgrades
Product TypesExhaust Systems
BrandAdvanced Flow Engineering
MakeChevrolet
ModelSilverado HD
Year2017, 2018, 2019