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USD 505.39 526.29
Part #:

AFE 49-44081 Large Bore HD 5" Filter-Back Exhaust System

2016-2017 GM 6.6L Duramax (Fits Crew & Extended Cabs with NOX Sensor)
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Improves looks, flow, and performance on your 2016-2017 GM 6.6L Duramax with the AFE 49-44081 Large Bore HD 5" Filter-Back Exhaust System.This system is constructed from 5" mandrel-bent 409 stainless steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. Also included in this exhaust system is your choice of a massive 6" polished or black powdercoated 304 stainless steel tip with a laser-cut stainless steel aFe power badge. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value.

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 stainless steel 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 6" diameter, polished or black powdercoated 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" Filter-Back Exhaust
  • Fits Models With NOX Sensor
  • Mandrel Bent Stainless Steel 
  • Your Choice Of Black Or Polished Exhaust Tip
  • Fits all Crew & Extended Cab Applications
Note: This exhaust system is intended for use on models with the NOX Sensor. Cutting is required for some cab configurations. All Crew & Extended Cab fitment applies to 2500HD/3500HD Pickups. This system is not intended for use on Cab & Chassis models.

Extended Cab/Short Bed, 6.6ft Bed, 143.5 Wheelbase
Crew Cab/Short Bed, 6.6ft Bed, 153.7 Wheelbase
Extended Cab/Long Bed, 8ft Bed, 158.1 Wheelbase
Crew Cab/Long Bed, 8ft Bed, 167.7 Wheelbase

Product Options:
Black Exhaust Tip - 49-44081-B
Polished Exhaust Tip - 49-44081-P


  • Manufacturer Name AFE
  • Shipping Weight 34.00 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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