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USD 444.59 526.29
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AFE 49-44040 MACH Force XP 5" DPF-Back Exhaust System

2007.5-2010 GM 6.6L Duramax LMM (All Cabs & Beds)
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The AFE MACH Force XP DPF-Back exhaust 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. MACH Force XP 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 OE-style flange and band clamps are used 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 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 our Corona, California manufacturing facility. Not for use on Cab & Chassis models. 

  • 5" Stainless Steel Construction 
  • DPF-Back Exhaust System
  • Available With No Tip, Polished Or Black Exhaust Tip
Exhaust Tip Options
No Tip 49-44040
Polished Tip 49-44040-P
Black Tip 49-44040-B


  • Manufacturer Name AFE
  • Shipping Weight 33.00 lb.
  • Shipping Length 19 in.
  • Shipping Width 23 in.
  • Shipping Height 13 in.
  • UPC 802959496299
  • 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

So this product would just bolt on and thats it, i dont need anything else for my duramax to run normal? I don't need to chip it or anything it wont mess with my computer if I straight pipe it?
View Staff Answer 

The AFE 49-44040 MACH Force XP 5" DPF-Back Exhaust System is considered a “Filter-Back” system. A Filter-Back exhaust system consists of new piping from the DPF (Diesel Particulate Filter) to the end of the tailpipe. Everything before the DPF is factory emissions compliant exhaust and requires no special tuning to be run.

*This is not a straight pipe exhaust.