The solenoids are integrated into the plate for a super clean look and easy install. A direct-plug-in Fuel Line Adapter is provided to simplify installation (no need to cut your factory fuel lines). This system includes a TPS Autolearn switch so the nitrous only activates at wide open throttle and automatically turns off when you let your foot off the accelerator. The system includes jetting for 35, 50, 75, 100, 125, 150, 200 and 250 horsepower. Systems include a stainless braided N2O line, master arming switch, relay, relay harness and all necessary hardware to complete the installation. Systems ordered with a nitrous bottle include the new billet aluminum Lightning 45 bottle valve and stainless bottle brackets.