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Gibson Dual Extreme cat-back exhaust for 2021–2022 GMC Yukon XL 1500 and Suburban 1500 5.3L 2/4wd delivers an aggressive exterior angle and a bold, mean tone outside while keeping cabin noise controlled. The bolt-on stainless system uses mandrel-bent tubing, a baffled Superflow muffler and polished stainless slash-cut tips for street-ready looks and dyno-tested gains of roughly 15–20 hp. Installation requires no welding and the system is backed by a lifetime limited warranty.
Gibson 21-22 GMC Yukon XL 1500/ Suburban 1500 5.3L 2/4wd Cat-Back Dual Extreme Exhaust
