Gibson 11-19 GMC Sierra 2500 HD Denali 6.0L 3.5in/3in Cat-Back Dual Extreme Exhaust - Aluminized

For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains. You can expect to experience gains on average of 15-20 horsepower. Gibson muffler provides a mean performance sound and complemented with polished Stainless Tip. Easy bolt-on installation. No welding required. Backed by a Lifetime Limited Warranty. If you want Extreme, this system is it.Installation InstructionsCertificate of OriginThis Part Fits: Year Make Model Submodel 2015-2019 Chevrolet Silverado 2500 HD High Country 2011-2019 Chevrolet Silverado 2500 HD LT 2011-2019 Chevrolet Silverado 2500 HD LTZ 2011-2019 Chevrolet Silverado 2500 HD WT 2015-2019 Chevrolet Silverado 3500 HD High Country 2011-2019 Chevrolet Silverado 3500 HD LT 2011-2019 Chevrolet Silverado 3500 HD LTZ 2011-2019 Chevrolet Silverado 3500 HD WT 2015-2019 GMC Sierra 2500 HD Base 2011-2019 GMC Sierra 2500 HD Denali 2011-2019 GMC Sierra 2500 HD SLE 2011-2019 GMC Sierra 2500 HD SLT 2011-2014 GMC Sierra 2500 HD WT 2015-2019 GMC Sierra 3500 HD Base 2011-2019 GMC Sierra 3500 HD Denali 2011-2019 GMC Sierra 3500 HD SLE 2011-2019 GMC Sierra 3500 HD SLT 2011-2014 GMC Sierra 3500 HD WT