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The Gibson Super Truck cat-back exhaust for 2017 GMC Sierra 1500 5.3L is a stainless performance system with dual tailpipes that exit in front of the rear tires to deliver a race‑style rumble and stronger acceleration. Dyno results typically show 15–18 hp gains and 15–20 lb‑ft of torque. This loud system may exceed 95 dB and is not recommended for towing; installs bolt‑on with included hardware and is backed by a Lifetime Limited Warranty.
Gibson 2017 GMC Sierra 1500 Base 5.3L 3in/2in Cat-Back Super Truck Exhaust - Stainless
