Pretty open question? If I bought a new bike I'd just do the legal stage 4 kit to keep the warranty but from your signature list maybe a 124 would be a better fit?
What type of power are you looking for?
We've been delivering large helpings of that for almost 30 years now..........although we don't have YouTube videos..
Scott
Harley shows SE legal stage 4 only making 110 tq/103hp for $2000 +labor. But it does not effect the warranty if installed before delivery. Ya can get much better #s for same/less $s in the aftermarket. But ya lose the factory warranty.
Do you still have those bikes?! Or does your 2014 replace the 2012? Only wanting 110HP leaves me suspicious you don't mean that! Unless the 120R was a bit too much......