Gibson 612501 Cat-Back Exhaust for 2007-2009 Hummer H2 6.0L/6.2L V8

Vehicle Fitment

• 2007-2007 Hummer H2 (4WD, 6.0L V8)
• 2008-2009 Hummer H2 (4WD, 6.2L V8)

Fitment Notes

• For 4WD Hummer H2 applications only.
• 2007 applications use the 6.0L V8; 2008-2009 applications use the 6.2L V8.
• Designed for the factory H2 exhaust configuration.
• Not verified for Hummer H3 or other Hummer models.

Features

• Gibson Swept Side cat-back single exhaust system.
• 3.5-inch 409 stainless steel mandrel-bent tubing.
• SuperFlow baffled and chambered muffler design.
• No internal muffler packing for consistent performance.
• 4-inch polished T-304 stainless steel round slash-cut tip.
• Single rear exit configuration.
• Mandrel-bent tubing promotes smooth exhaust flow.
• Designed to improve low-RPM horsepower and torque.
• Produces a deeper, more aggressive exhaust tone.
• Factory-style hangers and installation hardware included.

Specifications

• Brand: Gibson Performance Exhaust
• Part Number: 612501
• System Type: Cat-Back Single Exhaust
• Tubing Diameter: 3.5 inches
• Tubing Material: 409 Stainless Steel
• Muffler: SuperFlow Baffled and Chambered
• Muffler Dimensions: 4 x 9 x 18 inches
• Tip: 4-inch Polished T-304 Stainless Steel
• Exit Position: Straight Out the Back
• Drivetrain: 4WD

Included Components

• 1x Cat-Back Exhaust System
• 1x SuperFlow Muffler
• 1x Polished T-304 Stainless Steel Exhaust Tip
• 1x Installation Hardware Set
• 1x Factory-Style Hanger Set

Product Description

The Gibson 612501 is a Swept Side cat-back single exhaust system engineered for the 2007-2009 Hummer H2 4WD. It uses 3.5-inch 409 stainless steel mandrel-bent tubing and a baffled, chambered SuperFlow muffler to improve exhaust flow while delivering a deeper and more aggressive exhaust note.

The system uses a 4-inch polished T-304 stainless steel slash-cut tip with a single rear exit. Gibson designed the system to support improved low-RPM horsepower and torque, making it well suited for everyday driving, towing, and performance-oriented H2 use. Factory-style hangers and installation hardware are included for a straightforward bolt-on installation.