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The Gibson Dual Extreme cat-back for 2015–2018 Chevrolet Silverado 1500 LS 5.3L is an aluminized bolt-on system designed for aggressive tone and aggressive styling, with tailpipes routed behind the rear tires. Dyno-tested performance gains average 15–20 horsepower. The Superflow muffler produces a strong exhaust note with minimal cab drone, and the system includes polished tips and factory-style hangers for straightforward installation.
Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Extreme Exhaust - Aluminized
