Hooker BlackHeart introduces their cat-back single side exit exhaust system for the 2015-2019 Chevrolet/GMC Silverado and Sierra 2500HD/3500HD trucks with the 6.0-liter engine. This system is designed with 3.50-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 8 hp and 8 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 12-pounds, but also provides an aggressive to moderate performance tone that will make your truck stand out from the crowd. A large 5.00-inch polished 304 stainless steel tip is used and has an angle-cut end and the Hooker logo laser etched into it 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. Fits 2015-2019 GM 2500/3500HD 6.0-liter V8 Crew Cab Standard Bed Trucks only.