Ok,,,, there's a guy tryin to sell me his Used Nitrous kit for $695+shipping. He says it has around 3000-5000 miles on it. This is what all it is:

A complete Zex Dry Kit
A Bottle Heater
A Remote Bottle Opener

And He Also had these, are they a good deal? And are the parts that good?

He has the top of a NEUSPEED header for $45, but i'll have to get a downpipe fabricated at a muffler shop.
He also has a SET OF BLUETOP 450cc injectors and an extra resistor box for $65 for all of it.

So do i need the injectors maybe because i AM getting a NOS set-up even if it's not his. SOMEONE that knows something about this kinda stuff please give me a a little advice please. THANKS TO EVERYONE for all the help!!!!

 

i can get a nearly new NOS kit for 300