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The Gibson Black Elite single cat-back for 2011–2019 GMC Sierra 2500 HD Denali 6.0L pairs durable stainless construction with a deeper exhaust tone. Featuring 3.5in mandrel-bent tubing feeding a Superflow muffler and finished with a black T-304 rolled tip, the system offers a bolt-on install with included hardware and factory-style hangers, reduced cabin drone, and lifetime limited warranty coverage.
Gibson 11-19 GMC Sierra 2500 HD Denali 6.0L 3.5in Cat-Back Single Exhaust - Black Elite
