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Gibson single-side cat-back exhaust for 2014–2018 GMC Sierra 1500 Denali 6.2L is a stainless cat-back system tuned to boost acceleration, towing capacity and passing power while exiting behind the rear tire and reducing cabin drone for a cleaner interior sound. Dyno-tested low-end gains are reported around 18–21 hp and 20–22 lb‑ft. The kit includes mandrel-bent stainless tubing, a baffled Superflow muffler, polished slash-cut tip, factory-style hangers and installation hardware for a bolt-on, no-weld install backed by a lifetime limited warranty.
Gibson 14-18 GMC Sierra 1500 Denali 6.2L 3.5in Cat-Back Single Exhaust - Stainless
