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The Gibson Dual Split cat-back exhaust for 2019–2022 GMC Sierra 1500 Denali (5.3L) delivers an aggressive throaty sound and 4.0-inch rolled stainless tips exiting straight out the rear. Designed to reduce backpressure for increased torque and horsepower (typical gains 18–20 hp), the system fits most bumpers and roll pans, installs with included band clamps and offers a hassle-free bolt-on installation with no welding required.
Gibson 19-22 GMC Sierra 1500 Denali 5.3L 3in/2.5in Cat-Back Dual Split Exhaust - Stainless
