Ok, I just installed the Holeshot slip-on, TFI, o2 bypass, and air box mods. Sounds fantastic, just enough growl to not be obnoxious while still being plenty loud. Performance wise, definitely an increase, but it's deceiving just like the power delivery before. There's no big rush of power, just smooooooth, elbow-socket detaching umph from 2k on. It does seem noticeably smoother at lower RPMs with Dale's settings on the TFI box. I'll post up more impressions after I put more than a couple miles on it.
For those that are curious about clearance for hardbags, I lost what seems to be just at 2". Measuring from the stock can to the top of the turn signal I got 5 1/4". With the HS setup it dropped to 3 1/4" or maybe a hair less even. How much room did you guys have between the bags and the stock can? Hopefully it's 2" or a little more...
Let us know about bag clearance those of you w/ bags.
trey