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The Gibson single-exit cat-back exhaust for 2007–2012 Chevrolet Avalanche LS (5.3L) improves acceleration and towing performance with a rear exit that keeps cabin noise low. Aluminized mandrel-bent tubing and a baffled Superflow™ muffler tune exhaust flow for better low-end torque and typical 10–15 horsepower gains. The system fits with factory-style hangers and includes installation hardware.
Gibson 07-12 Chevrolet Avalanche LS 5.3L 3in Cat-Back Single Exhaust - Aluminized
