Oh yes. I have two 800's all equipped for MRO Minitwins. I was on an SV last year in the same series but, for this elected to go the 800 route. Sadly, the rules intervened for me so, that's now out.
At the moment both bikes are putting out 77bhp at the rear wheel with std pipes and filter on. I've found a very useful little tweak that lifts the power nicely in the midrange from 60bhp at 6k rpm to 65bhp at 6k rpm.
I've also managed to move peak power down from 8900rpm to 8200rpm. Lovely. Now I just need to fit the race pipes, filter and possibly an FIM ecu...I reckon 85bhp might be within reach without too much effort here...we shall see. I get free dyno time which, allows me to play to my heart's content.
[Edited on 3-1-2006 by twpd]
[Edited on 3-1-2006 by twpd]