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The Gibson dual-split cat-back exhaust for 2008–2010 Hummer H3 Alpha (5.3L) is a stainless bolt-on system with polished dual tips exiting straight from the rear for an aggressive look and deeper tone. It pairs a baffled Superflow muffler with mandrel-bent tubing and factory-style hangers to reduce backpressure and deliver typical 15–20 hp gains. Installation is hassle-free and the system is covered by a Lifetime Limited Warranty.
Gibson 08-10 Hummer H3 Alpha 5.3L 2.5in Cat-Back Dual Split Exhaust - Stainless
