The Edelbrock E-Force Supercharger system part # 15353 is a Stage 3 Pro Tuner kit that delivers in upwards of 688rwhp and 601rwtq for your 2011-14 6.4L HEMI Chrysler 300, Dodge Charger or Challenger. The part # 15353 gives you all the essential components needed to build a custom supercharged race setup. This gives you the flexibility in pulley selection, cold air intake, and more. The part # 15353 is for Competition Racing Use ONLY! Featuring a unique design with minimal components makes it possible to fit an E-Force Supercharger under the stock hood. The core of each system is the Eaton Gen VI 2300 Supercharger rotating assembly with a four lobe design with 160 degrees 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. Customer MUST purchase a heat exchanger SEPERATELY. For safety, the Edelbrock supplied program will retain the factory vehicle speed limiter setting. This unit is NOT supplied with a Programmer. Supercharger systems without tuners are not eligible for supplemental warranty. Supercharger systems sold without tuners are only emissions legal when used with the correct Edelbrock program, which can be downloaded at www.edelbrock.com.