Gibson 07-10 Hummer H3 Base 3.7L 2.5in Cat-Back Dual Split Exhaust - Aluminized Gibson GIB312700
Gibson 07-10 Hummer H3 Base 3.7L 2.5in Cat-Back Dual Split Exhaust - Aluminized Gibson GIB312700
Gibson 07-10 Hummer H3 Base 3.7L 2.5in Cat-Back Dual Split Exhaust - Aluminized Gibson GIB312700
Gibson 07-10 Hummer H3 Base 3.7L 2.5in Cat-Back Dual Split Exhaust - Aluminized Gibson GIB312700
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Gibson 07-10 Hummer H3 Base 3.7L 2.5in Cat-Back Dual Split Exhaust - Aluminized

Gibson
GIB312700
677418014266
Catback
5 Units In Stock - Ships Next Business Day
$ 1,227.99
$ 1,227.99

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

Request For Information

Have questions about Gibson 07-10 Hummer H3 Base 3.7L 2.5in Cat-Back Dual Split Exhaust - Aluminized? Fill out the form below and we'll get back to you by the next business day.
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