SKU: 312700 | UPC: 677418014266
Gibson 2006-2010 Hummer H3 Base 3.7L 2.5in Cat-Back Dual Split Exhaust – Aluminized
Upgrade your Hummer H3 with the Gibson cat-back dual split exhaust system designed for 2006-2010 Base models with 3.7L engine and 2007 X. This aluminized steel exhaust reduces backpressure to deliver more torque and average horsepower gains of 15-20. Enjoy an aggressive throaty sound and striking rear-exit look with stainless tips.
Key Features
- 2.5-Inch Mandrel-Bent Tubing: Aluminized steel construction ensures smooth exhaust flow and durability for consistent performance.
- Stainless Steel SuperFlow Mufflers: Provide deep throaty tone that intensifies under load or towing without drone.
- Dual Split Rear-Exit Tips: Polished stainless 3.5-inch tips exit straight out the back for a custom aggressive appearance.
- Proven Power Gains: Dyno-tested increases of 15-20 horsepower and added torque through reduced restriction.
- Bolt-On Design: Uses factory mounting points for straightforward setup with no cutting or welding.
Product Notes
- Exhaust note grows louder during towing for enhanced awareness.
- Works seamlessly with stock bumpers roll pans and trailer hitches.
- Protected by Gibson Lifetime Limited Warranty on materials and workmanship.
Installation Notes
- Professional installation recommended.
- Complete bolt-on process takes 1-2 hours using provided clamps and hangers.
- Compatible with OEM hardware no modifications required.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2010 | Hummer | H3 | Base |
| 2007 | Hummer | H3 | X |
Why Choose Gibson?
- Decades of exhaust engineering focused on power and sound.
- High-quality aluminized steel and stainless components built to last.
- Dyno-proven designs deliver measurable gains on street and track.
Frequently Asked Questions
- Q: Does this fit a 2008 Hummer H3 Base 3.7L?
A: Yes it fits all 2006-2010 Hummer H3 Base models with 3.7L engine and 2007 H3 X. - Q: What materials are used in construction?
A: 2.5-inch aluminized steel tubing with stainless steel mufflers and 3.5-inch polished tips for corrosion resistance. - Q: What does the Lifetime Limited Warranty cover?
A: Covers defects in materials and workmanship for as long as you own the vehicle when properly installed.
Shipping & Handling
- Method: Standard ground shipping
- Availability: In stock – ships same or next business day
- Packaging: Single heavy-duty box dimensions 60in x 14in x 14in
- Weight: 42 lbs





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