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The Gibson Dual Extreme cat-back exhaust for 2007–2012 Chevrolet Avalanche LS (5.3L) is an aluminized dual-exit system crafted for drivers who want aggressive sound and bold styling. With tips exiting behind the rear tires at an angle, dyno-tested gains typically average 15–20 hp. The Superflow CFT muffler and polished stainless tips deliver a powerful tone with controlled interior drone; installation is bolt-on and covered by a lifetime limited warranty.
Gibson 07-12 Chevrolet Avalanche LS 5.3L 2.25in Cat-Back Dual Extreme Exhaust - Aluminized
