I like where they say "....Factually in fact, with the Mitsubishi FTO supercharger your horsepower will be like a bubble bath.." - making bubbles in your bath would probably be a better use for it alright.
I reckon you would get a much better increase in power by plugging a hairdryer (on cold) into your air filter - hey presto - a much more efficent supercharger.
I have one for sale for the fantastic price of 179.99Euro if you are interested?