The Gibson Dual Extreme cat-back exhaust for 2010–2013 GMC Sierra 1500 SLE 4.8L is a stainless bolt‑on system positioned at an aggressive angle behind the rear tires for eye‑catching style and a powerful tone. Dyno‑tested street performance typically yields 15–20 hp gains. The package includes a baffled Superflow muffler, polished tips and all necessary hardware for a clean, hassle‑free installation; Lifetime Limited Warranty included.
Gibson 10-13 GMC Sierra 1500 SLE 4.8L 2.25in Cat-Back Dual Extreme Exhaust - Stainless