The Edelbrock E-Force Supercharger system delivers excellent horsepower and torque for your 2011-14 5.7L HEMI Chrysler 300, Dodge Charger or Challenger. This kit allows you to take our Stage 1 kit and get the custom tune you desire. Featuring a unique design with minimal components makes it possible to fit an E-Force Supercharger under the stock hood. For safety, the Edelbrock supplied program will retain the factory vehicle speed limiter setting. This kit is NOT supplied with a programmer. Supercharger systems without tuners are not eligible for supplemental warranty.