two solenoids for the nitrous and fuel? or one for the nitrous and one for the purge?

it's not all that hard. do you have your wide open throttle switch installed on your throttle body yet? how about your purge switch and your on/off toggle switch to arm the system? do you have a nitrous filter?

really you just drill a hole in your intake (its been a while since i installed one, but i think it needs to be at least 6" from the throttle body itself. ), tap that hole so your nozzles don't pop out, and when you do install them make sure they are air tight so you wont have a vacuum leak. mount your solenoids where you would like them, install the WOT switch, then start the wiring. look online for a wiring diagram or actual instructions if you can't figure it out on your own.

the purge system is hella easy to install.