I have a buddy that I go riding with all the time with his M109. My mods are PR BAK, Propipe, PC111 (no custom map), he has drilled his baffles, and a Holley filter system( Which would barely be a filter). Needless to say he can get me everytime. We ride the piss out of both our bikes. He can only get about 2 bike lengths on me though. I added a 31 tooth pullley thinking that it would get him but it didn't make that much difference.
I would think that a bigbore would be able to take one, been pondering the thought for a winter project, but I'm pretty happy with what I have now and he can't by no means loss me down the straight (upto 230 km/h (135 mph) then I'm tapped out and he's gone).
Winding roads that's a different story!! Went from Nakusp B.C to Vernon and I had to stop twice for quite some time to make sure he was still on the road!