Hooker BlackHeart introduces their dual rear exit cat-back exhaust system for the 2015-2019 Chevrolet/GMC Silverado and Sierra 2500HD/3500HD double cab/standard bed trucks with the 6.0-liter engine. This system is designed with 3.00-inch to 2.50-inch mandrel bent 409 stainless steel tailpipes that offer excellent corrosion resistance and maximum exhaust flow for improved performance. On the dyno this kit showed maximum gains of 10 hp and 9 lb-ft at the rear wheels. The system uses a high-flow muffler design that not only looks good and reduces the weight of the exhaust by 9 lbs, but also provides an aggressive to moderate performance tone that will make your truck stand out from the crowd. Dual 4.00-inch polished 304 stainless steel tips are used and have an angle-cut end and the Hooker logo laser etched into them to add additional style to the system. All hardware is included and this system utilizes the factory mounting points for an OE type of fit and a simple installation.