Just incase all of you have not read this article yet, here you go! http://www.mppa.biz/pdfs/nitro%20works%201204.pdf
Yes, it is alot of money to spend for such a small gain.
Yes, people have there doubts about Supercharging a 2 stroke.
Yes, they look pretty1
And finally yes, it is worth buying if you already have all the best parts for your vehicle (engine, pipe, gears, etc) & this is the last possible thing you can do to the vehicle. If there is nothing left for you to do to the car to improve it's performance then you spend the money & try out something new to see if it really does work. I think these products get a bad rap mainly because of the price. Most people think logically, which is "I can buy a new engine with twice as much power as the motor I have now for that price". Which is totally true, but if you already have the best, then you step it up & see what it's all about. Honestly I can't see how anyone can talk intelligently about these products unless they have first hand use & knowledge about them. So please do not knock these products unless you have physically used them.