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The Gibson Dual Extreme cat-back exhaust for 2007–2012 Chevrolet Avalanche (5.3L) is a stainless bolt-on system that exits behind the rear tires at an aggressive angle to deliver bold looks and a powerful tone. Dyno-tested results typically show 15–20 hp gains and increased torque. The baffled Superflow CFT muffler, mandrel-bent tubing and polished slash-cut tips help control interior drone. No welding required; simple bolt-on installation and lifetime limited warranty.
Gibson 07-12 Chevrolet Avalanche LS 5.3L 2.25in Cat-Back Dual Extreme Exhaust - Stainless
