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The Gibson single cat-back exhaust for 2007–2010 Hummer H3 (3.7L) is a stainless bolt-on system that exits straight out the rear and features a polished slash-cut tip for a refined finish. It uses a baffled Superflow CFT muffler and mandrel-bent tubing with factory-style hangers to limit interior drone while improving exhaust flow for modest 5–10 horsepower gains. Installation is straightforward and it includes a Lifetime Limited Warranty.
Gibson 07-10 Hummer H3 Base 3.7L 2.5in Cat-Back Single Exhaust - Stainless
