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The Gibson dual-split cat-back exhaust for 2007–2010 Hummer H3 (3.7L) gives an aggressive, throaty tone with stainless dual tips exiting straight out the back. Its design reduces backpressure to increase torque and power, with typical gains of 15–20 horsepower. Aluminized mandrel-bent tubing and a baffled muffler provide a hassle-free bolt-on installation and a professional finished look.
Gibson 07-10 Hummer H3 Base 3.7L 2.5in Cat-Back Dual Split Exhaust - Aluminized
