Stage 3 Snow Performance Boost Cooler. Water/methanol injection system. The stage 3 system is a programable progressive system. Allows you to inject only the amount you need. Can be triggered by boost, injector pulse or both. Comes with three jets, controller, pump and tank, everything in the pic. Used 2 yrs. might have 1000 miles on it. On my datalogger you can actually watch the air temps come down as the controller starts to put water/meth in the motor. $500 PM me with a ph# and I'll return your call. Mike