aFe Power is proud to introduce the all new Sprint Booster line up for the popular Dodge, Ford, GM, Jeep, BMW & Porsche Applications. This simple and safe plug and play device eliminates the delay in the pedal response, which allows for crisp acceleration on tap, dramatically improving response time and your overall driving experience. This device has three settings. Green: "Sport Program" Better response for smooth driving. Red: "Race Program" Best response for aggressive driving. Light Off: "Inactive" Vehicle is back to the stock response.