I fitted one of these little devils after I had the Blue Flame Twin Port and K&N Filter fitted, however it did not work for me. Had it removed this week by the local dealer who also set the bike up again for me.
I can see the theory behind it, but it just made slow speed running worse, I see lots of others sing its praises so I'm just putting it down to experience.
Having said that, I am willing to sell it to anyone who actually does want one.
Just let me have a decent offer and it's yours.