The Edelbrock E-Force Supercharger Stage 2 Track System part # 15711 for 2014-16 Chevy Corvette Stingray LT1 increases the performance of your LT1 engine to 537 horsepower and 527 ft/lbs. of torque to the rear wheels. The supplied tune is intended for completely stock vehicles with the exception of a cat-back exhaust. This kit will include a tune for 91 or 93 octane fuels.