 The 6.2L V8 remained at 540 hp, but felt much quicker from the responsiveness of the new DI V8.In mid-2015, Callaway replaced the original supercharger design with their new GenThree supercharger from the 2014 Callaway SC Stingray, adapting to the 5.3L and 6.2L direct injection V8 engines.Consequently, power was increased with the new Callaway supercharger.