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Part #:

AFE 49-44089 Rebel XD Series 4" Filter-Back Exhaust System

2017-2018 GM 6.6L Duramax L5P (All Crew Cabs)
Part #:
FROM 631.75
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Give your 2017-2018 GM 6.6L Duramax L5P a custom look with the AFE 49-44089 Rebel XD Series 4" Filter-Back Exhaust System. Constructed from 4" mandrel-bent stainless steel tubing, this dual tip exhaust system installs easily using factory mounting locations and high quality band clamps for a secure fit. Each kit includes your choice of 5" black, or polished stainless steel intercooled tips. 

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 Rebel XD Series exhaust system is constructed of 4" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs.

5" Diameter Intercooled Tips:
Finishing off the exhaust are your choice of 5" diameter, Hi-Temp black or polished stainless steel, straight cut tips 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.

  • 4" Filter-Back 
  • Stainless Steel Construction
  • High Quality Band Clamps & OE Style Bayonet Hangers
Fitment Guide:
Crew Cab/Short Bed, 153.7" Wheelbase 
Crew Cab/Long 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 2500HD/3500HD Pickups only. 
This system does not fit on Cab & Chassis models.

Product Options:
49-44089-B - Black Exhaust Tips
49-44089-P - Polished Exhaust Tips


  • Manufacturer Name AFE
  • Shipping Weight 37.00 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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