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Gibson

Gibson 08-10 Hummer H3 Alpha 5.3L 3in Cat-Back Single Exhaust - Stainless

$1,335.37 $581.62 Save $753.75

SKU: G003 612801

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 612801

Gibson most popular exhaust is the one you can trust when you want reliable performance from your vehicle. This single exhaust exits straight out the back, complemented with polished Stainless Tip. Hassle free, bolt-on installation with professional looking results. You can expect to experience gains on average 5-10 horsepower. Backed by a Lifetime Limited Warranty.

Features:

  • Stainless Steel Mandrel Bent Tubing
  • Superflow (TM) CFT Muffler
  • Baffled/Chambered Muffler; No Internal Packing
  • Minimal Interior Drone - Aggressive Sound
  • Polished Stainless Round Slash-Cut Tips
  • Incl. Hardware/Factory Style Hangers For Easy Bolt-On Install
  • Lifetime Limited Warranty

Cat-Back Single Exhaust System | Stainless

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

The Gibson 612801 is a stainless steel cat-back single exhaust system designed for the 2008-2010 Hummer H3 Alpha 5.3L. It features 3.500-inch mandrel-bent tubing and a Superflow™ CFT Muffler, providing an aggressive sound with minimal interior drone. The system includes a 4.000-inch polished stainless steel round slash-cut tip and offers an average gain of 5-10 horsepower. It is a bolt-on installation and comes with a Lifetime Limited Warranty.

Fitment

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Specifications

BrandGibson
Part NumberG003 612801

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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