Click to zoom in
The MACH Force-Xp Cat-Back Exhaust System Built for Sound and Flow
The aFe MACH Force-Xp cat-back exhaust system 49-44010 is a precision-engineered replacement for your vehicle's restrictive factory exhaust, built from 409 stainless steel for reduced backpressure and genuine performance gains. Connects at the catalytic converter outlet and runs to the rear of the vehicle. The 49-44010 is fully mandrel-bent for consistent interior diameter throughout every curve, preserving exhaust gas velocity from the collector to the tailpipe. The result is improved power delivery across the RPM range, a more aggressive exhaust note, and a polished stainless tip that improves the look of the rear fascia.
Key Features
- Material: 409 stainless steel, TIG-welded joints
- Mandrel-bent tubing for consistent interior diameter
- Tip finish: polished stainless
- Direct bolt-on using factory mounting points and hangers
- Reduces backpressure for measurable power and torque gains
- Aggressive exhaust note without excessive drone at highway speed
- All hardware and gaskets included for straightforward installation
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2003-2006 | Hummer | H2 |
Specifications
| Detail | Value |
|---|---|
| Part Number | 49-44010 |
| Brand | aFe Power |
| Product Line | aFe MACH Force-Xp |
| Material | 409 Stainless Steel |
| Tip Finish | Polished Stainless |
| Mounting | Factory hangers and OEM bolt positions |
| UPC | 802959494899 |
What's Included
- aFe MACH Force-Xp cat-back exhaust system (49-44010)
- All required clamps, gaskets, and hardware
- Installation instructions
Frequently Asked Questions
Will this exhaust require a tune after installation?In most applications, a bolt-on cat-back or axle-back exhaust does not require a tune. If you are also running a downpipe or header, a tune is strongly recommended to fully realize the power gains and prevent any lean conditions. Always consult your tuner when building a full exhaust setup.
Is this exhaust too loud for daily driving?The aFe MACH Force-Xp is designed to produce an enhanced exhaust note without excessive interior drone at highway speed. At idle and during spirited acceleration, the sound is noticeably more aggressive than stock. Sound level varies by vehicle platform and individual preference.
Does this exhaust maintain OEM ground clearance?Yes. The 49-44010 is designed around OEM ground clearance specifications. If your vehicle is lowered, inspect clearance at the lowest point during test-fit before final installation to confirm no contact with body or suspension components.
Are all clamps, gaskets, and hangers included?Yes. The 49-44010 ships complete with all clamps, gaskets, and hardware needed for the installation. No separate hardware purchases are required for a standard bolt-on installation.
How much power gain can I expect from this exhaust?Gains vary by vehicle, engine, and supporting modifications. A cat-back exhaust alone typically contributes 5 to 15 hp on naturally aspirated engines. On turbocharged or supercharged applications, a full exhaust system combined with a tune can yield significantly larger gains.
Will this exhaust void my warranty?Under the Magnuson-Moss Warranty Act, an exhaust upgrade alone cannot be used to void your powertrain warranty unless the dealer can prove it directly caused a specific failure. For any drivetrain or emissions-related service, discuss this with your service advisor before work begins.
Is this exhaust compatible with my OEM tips if I want to keep them?The 49-44010 comes with its own polished stainless tip. If you prefer different tips, the pipe outlet dimensions are listed in the product specs and compatible aftermarket tips from vendors like Borla or Magnaflow can be substituted. Contact us to confirm outlet sizing for your specific application.
What is the maintenance requirement on a stainless steel exhaust?Stainless steel exhaust systems require minimal maintenance. Periodic cleaning with a stainless steel polish keeps the tips and visible pipe sections looking their best. Inspect the mounting hardware once a season in regions that use road salt in winter months.
Installation Overview
- Safely lift and support the vehicle to gain access to the full exhaust system
- Allow the OEM exhaust to cool completely before beginning
- Apply penetrating oil to all exhaust flange bolts and hangers at least 15 minutes prior to removal
- Remove the OEM exhaust section by section, starting from the rearmost component
- Compare the new 49-44010 sections against the removed OEM pieces to confirm lengths and clocking
- Hang the new exhaust onto the factory hangers, starting from the front connection point
- Install all flange bolts and clamps without fully tightening to allow for alignment adjustment
- Adjust all sections for clearance from body panels, fuel lines, and brake lines
- Torque all hardware to specification and verify tip alignment before lowering
- Start the engine and check for exhaust leaks at all joints before the first drive
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
aFe
aFe Power cold air intakes, air filters, and cat-back exhaust systems for trucks, SUVs, and performance cars are stocked at Black Ops Auto Works. Shop aFe Momentum GT intakes, Magnum FORCE intakes, Pro DRY S and Pro 5R filters, Takeda intakes and exhausts, Vulcan Series exhaust, Rock Basher axle-back systems, throttle body spacers, intercoolers, and diesel performance parts for RAM Cummins, GM Duramax, Ford Bronco, Toyota Tacoma, Jeep Gladiator, and Dodge Hellcat platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 2778 aFe Power SKUs across intake, filtration, exhaust, cooling, and diesel performance categories. What This Brand Covers aFe Power, short for Advanced FLOW Engineering, builds airflow focused performance parts engineered around dyno testing and CFD analysis rather than generic universal fitment. The catalog spans cold air intake systems, replacement and reusab...
View aFe Products
Catback
A catback exhaust system replaces everything from the catalytic converter back, covering the mid pipe, muffler, and tailpipe section in one bolt on upgrade. This collection covers catback systems for trucks, Jeeps, muscle cars, imports, and performance SUVs, giving you a straightforward way to improve sound, exhaust flow, and rear end styling without touching the factory catalytic converters or front pipe. Catback systems are available in stainless steel and titanium construction, with dual rear exit, single exit, and quad tip configurations, and a range of sound levels from mild touring tone to aggressive track character. Whether you want a deeper daily driver sound or a full track ready exhaust note, you will find a matched system for your platform here. What This Category Covers This collection includes complete catback exhaust systems, cat-back kits, dual rear exit systems, axle back adjacent catback upgrades, stainless steel and titanium exhaust systems, and street, tourin...
View Catback Products
Exhaust Systems
Performance exhaust systems for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop cat-back systems, axle-back systems, turbo-back systems, headers, downpipes, mid-pipes, mufflers, resonators, catalytic converters, exhaust tips, exhaust valve controllers, oxygen sensors, exhaust brakes, and motorcycle and powersports exhausts for Mustang, Camaro, Challenger, Corvette, Silverado, and Super Duty platforms. Every product is filterable by exhaust position, material, pipe diameter, and vehicle year, make, model, and trim so the correct fitment ships the first time. Black Ops Auto Works carries 7,441 exhaust SKUs across every position of the exhaust system. What This Category Covers Exhaust upgrades change sound, appearance, and in some cases power. Exhaust fitment depends on engine, drivetrain, and factory exit position, so confirm the exact platform before ordering any exhaust component. Exhaust Position Cat-back, axle-back, turbo-back, and header-back systems e...
View Exhaust Systems Products