The all new VC-50 water methanol injection controller from Snow Performance gives you the benefits of a boost gauge and water methanol controller/fail safe all in one! Heavily loaded, the VC-50 controller comes with built in manifold absolute pressure sensor that proportionality injects more or less water methanol according to boost pressure. Start and full points are adjustable to match what the engine requires. New dual tone 7 color (white, green, blue, red, orange, purple, yellow) OLED screen shows boost, percentage of injection, low level, second stage activation, and fault codes in a bright easy to read screen.