NITROUS OXIDE SYSTEMS Nitrous Controller V2, Progressive, LCD Touch Display, Wiring Harness NOS 25974NOSNOS Mini 2 Stage Progressive Nitrous Controllers NOS Mini 2 stage progressive nitrous controllers feature two independent stages of nitrous control, each with its own throttle position activation switch and progressive control ramps. They eliminate the need for a window switch, and enable you to turn the nitrous on and off at set points. The controllers also feature two programmable outputs so you can control timing retard or other devices. The