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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 that improves throttle response, towing and passing power while exiting behind the rear tire and providing a quieter cabin than many aftermarket options. Dyno results show typical gains around 18–21 hp and 20–22 lb‑ft at low RPMs. The kit includes mandrel-bent stainless tubing, a baffled Superflow muffler to limit interior drone, polished slash-cut tip, factory-style hangers and complete 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
