Your electronically fuel-injected motorcycle/ATV can now boast improved driveability and more power with the Two Brothers Racing Juice Box fuel controller. The Juice Box features simple plug-and-play installation and quick and easy adjustment. No need for computers and complex maps, just use the integrated buttons & LED display. It uses s carburetor tuning logic for easy to understand fuel adjustments. If you plan to modify your vehicle then our Juice Box is a must. This easy-to-use control unit plugs directly into the OEM wiring harness between the stock ECU and fuel injectors providing precise control of the engines fuel management system. Our Juice Box Fuel Controller comes pre-programmed, right outof the box, for your make & model of motorcycle. So you can Plug-and-Play right away or tweak the settings to suit your riding style.