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The Gibson Dual Extreme cat-back exhaust for 2019–2022 GMC Sierra 1500 Denali (5.3L) delivers an aggressive performance sound with polished rolled tips and a bold street look. Dyno-tested for gains averaging 15–20 horsepower, it uses mandrel-bent stainless tubing and a baffled muffler for minimal interior drone. The clamp-on system installs with included band clamps, is bolt-on with no welding required, and carries a lifetime limited warranty.
Gibson 19-22 GMC Sierra 1500 Denali 5.3L 3in/2.5in Cat-Back Dual Extreme Exhaust - Stainless
