The APR Throttle Booster instantly transforms the way your vehicle feels by customizing how quicky your throttle or accelerator pedal works. Simply plug it in and either use the wireless controller or smart phone app to set or customize how the pedal feels. Most people don't like the way their throttle pedal feels, and while tuning can help eliminate lag, everyone has a different opinion about how it should feel. This device lets you set it exactly the way you want and allows you to quickly switch between profiles. Set it to stock, sport modes, extreme modes, and eco modes with ease. Best of all, it's a quick plug and play device that can be removed at any time.