i have an evo 8 and i am in the process of installing my zex nitrous kit and i was wondering where the tach drive wire was or do we have one? I was gonna install a msd acdivated window switch so i dont have to worry about the car on nirtrous and and mis a shift? But to install this i have to find some sort of tach drive on the car so the msd switch will know what rpm to kick the nitrous on and off.