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Part #:

AFE 49-44064 Large Bore HD Stainless 3-1/2" DPF-Back Exhaust System

2016-2017 GM Colorado/Canyon 2.8L Duramax LWN (CCSB/CCLB)
Part #:
FROM 337.25
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The AFE 49-44064 Large Bore HD 3-1/2" DPF-Back Exhaust System for your 2016-2017 GM Colorado/Canyon 2.8L Duramax is designed to increase flow and looks. Constructed from 3-1/2" mandrel-bent stainless steel tubing, this exhaust system uses high quality band clamps and OE style bayonet hangers for a secure fit. Included is your choice of a massive 5" black or polished exhaust tip with a laser-cut stainless steel AFE Power badge.

Simple Installation:
This system uses factory mounting locations providing stability and hassle-free installation.

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 3-1/2" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs.

All aFe exhaust systems are engineered and manufactured in their Corona, California manufacturing facility.


  • Up To 40% Flow Increase
  • 3-1/2" Mandrel-Bent Stainless Steel Construction
  • High Quality Band Clamps & OE Style Bayonet Hangers
  • Utilizes Factory Mounting Locations For Hassle-Free Installation 
  • 5" Black Or Polished Stainless Steel Intercooled Tip With AFE Power Badge 
Install Notes:
Fits both Crew Cab, Short Bed (128.3" Wheelbase) & Crew Cab, Long Bed (140.5" Wheelbase) 
Cutting behind the DPF is required for installation.

Product Options:
49-44064-B - Black Exhaust Tip 
49-44064-P - Polished Exhaust Tip 


  • Manufacturer Name AFE
  • Shipping Weight 25.00 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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Questions and Answers

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Most Popular Questions

What do you mean cut? Is it a weld on system and do you need a tune after installation?
View Staff Answer 
This is NOT a weld on system. AFE requires you to cut the exhaust off right after the DPF. The AFE exhaust will then slip over the remaining extension left after the DPF and simply clamp on. Please refer to the installation instructions I have provided below. You will not require any tuning after installation.

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How does this connect to my truck? Do I have to cut the existing exhaust for it to match up? There is no location for this exhaust to just slip on. Do I need to make a cut by the Dpf for this to mount to?
View Staff Answer 
Some cutting is required. The installation instructions can be found HERE to get a better idea of how this exhaust installs.