^^^
Ohh that was good, referring to the Fast and Furious.
Anyways, are you talking about purge valves, you want to be able to spray it? Purge valves are just a way to bleed the lines of any nitrous left over from use before. Therefore you get a stronger hit.
Yes nitrous can be used with turbo or supercharger applications, most Nitrous sites like zex or nitrous express or N.O.S. should have a F&Q section that talks more in detail about that.
I know NX also has a kit that sprays directly into your Intercooler, if you want to go that route.