...and Chip, who knows a thing or three about the stuff!
I have Nitrous, but not hooked it up yet - waiting for me to do my winter rebuild first!
One thing I do know, any weakness in your car and nitrous will find it - you need a strong engine, healthy clutch etc - just like any other form of power increase really. It's also not so much of a 'black art' as some people will make out.
£ for BHP it's very good if you don't plan to use it all the time!
Simon