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The Gibson cat-back single exhaust for 2011–2019 GMC Sierra 2500 HD Denali 6.0L is a stainless single-side system that enhances low-end torque and towing performance with a restrained in-cab noise level. Dyno results show improved torque and horsepower at low RPMs. It features a baffled Superflow muffler, polished slash-cut tip, mandrel-bent stainless tubing and includes hardware and hangers for hassle-free bolt-on installation with a Lifetime Limited Warranty.
Gibson 11-19 GMC Sierra 2500 HD Denali 6.0L 3.5in Cat-Back Single Exhaust - Stainless
