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The Gibson Dual Split cat-back exhaust for 2010–2013 GMC Sierra 1500 SLE 4.8L is a stainless, bolt‑on system that offers an aggressive throaty sound with dual tips exiting out the back. By reducing backpressure it helps deliver typical gains of 15–20 horsepower. The baffled Superflow muffler keeps interior drone low while providing an assertive tone; includes hardware and factory‑style hangers for easy installation and is backed by a Lifetime Limited Warranty.
Gibson 10-13 GMC Sierra 1500 SLE 4.8L 2.25in Cat-Back Dual Split Exhaust - Stainless
