Ok, how does the nitrous thing work and where do you install them?
Ive seen them in movies and such where they press a button and it goes off. Im not sure how it all really works.
You don't really sound like you know too much at all about Nitrous Oxide...not to diss you cause you gotta learn sometime, but just promise me you will educated yourself thoroughly before installing such a system on your car.
I'm not going to try and explain the details, but check out as many sites and companies as you can on the web...NOS
This page here, should answer almost all of your questions Nitrous Oxide FAQ