I'd have to agree with Venom, Dan, and V-one S, it's fake or it won't work well at all.
I remember reading in Motorcyclist Magazine back in the early 90's, some guy tried to turbocharge a 500cc 2-stroke GP bike. It made a little more power but there was soooo much blow-by that the power gains wasn't worth the poor efficiency. It needs to be a 4-stroke like the OS .26 FS or similar with a secondary fuel pressure booster so it won't starve at top end.
If someone can do this, here's the best engine for it:
http://www.mecoa.com/hp/fc/hpfc25.htm#hpfc25
It has a gear driven rotory valve head instead of pushrods (ack!).
