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The Gibson Dual Split cat-back for 2015–2018 Chevrolet Silverado 1500 LS 5.3L is an aluminized bolt-on exhaust that improves flow and produces an aggressive, throaty sound. Dyno testing shows typical gains averaging 18–20 horsepower. The system uses a baffled Superflow muffler to minimize interior drone and polished dual tips that exit straight out the back. Works with most bumpers and trailer hitches; installation requires no welding.
Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Aluminized
