Right now i currently have a BPU'ed supra and am thinking about adding nitrous. What do i need (necessary) and what other things are recommended. For example, should i get a bottle heater/gauge? I also want to get a purge kit... is this hard to install yourself? I'm currently running NGK 3330's, but if i were to get nitrous, should i switch plugs (and if so, to what) because i remember platinum tipped plugs not working well with n20. (or something like that) Anyways, i would be running a 50-65 shot, but i'm not too sure how i'd like to control it. Ideally, i'd like to have an "arming" switch (on/off) and then also have a switch that makes the n20 stop at a certain RPM (is that possible?) In addition to that, i would probably like the nitrous to come on when i am going WOT. How do you set all that up? Also, what are the do's and don't of squeezing? (When it's safe, and when not to) Thanks.