2017-2019 Chevrolet Silverado 3500 HD - Large Bore-HD 5 IN 409 Stainless Steel DPF-Back Exhaust System

Part#:
49-44085-B-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 Large Bore-HD exhaust system is constructed of 5" mandrel-bent 409 stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs.

6" Diameter Black Intercooled Tip: Finishing off the exhaust is a 6" diameter, black, 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.

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
Weight39.00 lbs
Parent Product TypePerformance Upgrades
Product TypesExhaust Systems
BrandAdvanced Flow Engineering
MakeChevrolet
ModelSilverado HD
Year2017, 2018, 2019