This fuel control box is for the new 800 pro ride polaris. Its designed for turbocharger applications and has the ability to run 2 additional injectors. Stock injectors run out of fuel at 4psi of boost if your kits is effiencent and making power. The control box is a complete plug and play box. We recommend adding our billet boot when ordering. This box has 6 adjustable modes. And is the most user friendly box on the market.