The Edelbrock E-Force Supercharger system #15856 delivers excellent horsepower and torque in a complete kit. Featuring a unique design with minimal components. It makes it possible to fit an E-Force Supercharger under the stock hood. The core of each system is the Eaton Gen VI 2300 or 1320 TVS® Supercharger rotating assembly with a four lobe design with 160° of twist for maximum flow, minimum temperature rise and quiet operation for excellent drivability. We also designed our superchargers with an integrated bypass valve to help eliminate parasitic loss under light throttle, improving mileage potential. Our unique and efficient inlet configuration results in a shorter, less restrictive intake path for improved air flow, without the need for a jack-shaft. Keeping the air cool is a high capacity air to water intercooler and low temp heat exchanger. Edelbrock supercharger systems are available in three performance levels for most applications. 2005-06 installations require the use of Cooling Upgrade Kit #15804 (sold separately). 2009 installations will require Hardware Kit #15805 (sold separately). Supercharger systems sold without tuners are only emissions legal when used with the correct Edelbrock program, which can be downloaded at www.edelbrock.com. For safety, the Edelbrock supplied program will retain the factory vehicle speed limiter setting. Kit #15880 will fit BOSS Mustangs and will require custom tuning. #1580 will clear factory strut tower brace on Bullet models.