Few hours ago I was talking on the phone with TTS performance in England and they have informed me that there isn't any bolt on kit for the FZ6 and if I wanted a custom build I should take my bike to them which is very difficult for my as long as I live in Athens, Greece.
The cost is 4500-5000 british pounds for this kind of modification.
I will keep looking for a bolt on supercharger kit but I don't think that I'm gonna have any luck except if our friend from Australia (piratepete) shares some more informations.
Besides rotrex supercharger, a garrett gt1548 , a megasquirt ecu, a map sensor and some extra beck will work fine with less cost than the rotrex.
I really wait from piratepete to answer where did he find the kit!!!