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The Gibson Dual Split cat-back exhaust for 2015–2019 GMC Sierra 2500 HD 6.0L is a stainless system with dual tips that exit straight out the back for an aggressive, symmetrical look. It lowers backpressure to help produce typical gains of 15–20 horsepower and gives a throaty sound that becomes louder under towing loads. The baffled Superflow muffler reduces cabin drone and the package includes factory‑style hangers and hardware for bolt‑on installation.
Gibson 15-19 GMC Sierra 2500 HD Base 6.0L 3.5in/3in Cat-Back Dual Split Exhaust - Stainless
