AFE Exhaust Systems for your 2003 Hummer H2 are available from Installation instructions and reviews for your Hummer Exhaust Systems. Expert service, and cheapest Exhaust Systems price guarantee. carries a complete line of AFE products. Order your aFe Mach Force XP Cat-Back Exhaust System with Tip - Stainless Steel - Gas part number AFE49-44010 online at or call 800-298-8924 for expert service.
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Exhaust > 2003 > Hummer > H2

AFE Exhaust Systems for the 2003 Hummer H2

AFE Exhaust Systems

Code:   AFE49-44010



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Shipping Weight: 60 pounds


aFe Mach Force XP Cat-Back Exhaust System with Tip - Stainless Steel - Gas - 2003 Hummer H2

This cat-back exhaust system from aFe delivers aftermarket performance, including maximum airflow through the muffler, and factory-grade, stainless steel components, including 4", mandrel-bent tubes and 2 polished tips.


  • Enhanced airflow improves engine performance, thereby increasing horsepower and torque
    • 4", Mandrel-bent tubes maintain their shape and size throughout, providing unrestricted airflow
      • Decreases back pressure (also called "exhaust turbulence"), which can reduce airflow by as much as 20 percent
    • Increased airflow by as much as 166 CFM
  • Straight-through muffler has a stainless steel, perforated core with no chambers that restrict airflow
  • Aggressive exhaust tone resonates outside the Hummer H2, while the inside remains quiet
  • Stainless steel construction
  • Band-style clamps and welded-on, bayonet hangers for secure installation
  • Dual tailpipes with polished tips
  • Vehicle-specific design
  • Made in the USA


  • Tubing diameter: 4"
  • Tailpipe diameter: 4"
  • Number of tips included: 2
  • Single exhaust system with dual tailpipes
  • Stock exit position
  • Installation time: 1 hour
  • Limited lifetime warranty

Cat-back systems include exhaust parts from the catalytic converter back to the tailpipe. The Mach Force XP exhaust line from aFe includes large, 3", 4" and sometimes 5", mandrel-bent tubes that increase airflow by maintaining the same diameter throughout the exhaust system. This decreases back pressure (also called "exhaust turbulence"), which can reduce airflow by as much as 20 percent. By maintaining unrestricted airflow, aFe exhaust systems boast airflow gains as high as 80 percent for some Hummer H2s.

Performance graph showing the 12 horsepower and 14 ft/lbs of torque gained when you replace your stock exhaust system with this system from aFe

Each aFe exhaust system undergoes extensive dyno and bench testing to measure airflow and maximize gains, which are represented in performance charts that highlight the airflow benefits of aFe models when compared with stock models. As demonstrated by this performance chart, this aFe Mach Force XP system offers airflow gains of 166 cubic feet per minute (CFM) compared with the stock system.

49-44010 Advanced FLOW Engineering Exhaust Systems Cat Back Hummer H2 03-06 V8-6.0L - MACH Force XP


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    Info for this part was:

    Written by:
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