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The Gibson single-side cat-back exhaust for 2007–2012 Chevrolet Avalanche LS (5.3L) is a stainless cat-back system that enhances acceleration, towing and passing power while routing exhaust behind the rear tire to keep the cabin quieter. Dyno-tested to increase low-end torque and horsepower—typically 10–15 hp and 15–20 lb‑ft—this bolt-on kit uses mandrel-bent tubing, a baffled Superflow muffler for minimal drone, polished slash-cut tip, factory-style hangers and a lifetime limited warranty.
Gibson 07-12 Chevrolet Avalanche LS 5.3L 3in Cat-Back Single Exhaust - Stainless
