As was stated Tune ECU is a piece of cake to learn and use.
Emissions removal:
Yes, my 2013 R3T had emissions on it. If I put just a tiny too much fuel in it and it overflowed into the canister it would barely run as it tried to put the fuel back into the throttle bodies. It would sometimes happen if I fueled in the AM and then the bike sat at work all day and the fuel...
RamAir (or K&N) is fairly straight forward once the tank is up (or off).
It may take some searching but there are posts about the other stuff. Quite a few of us have also swapped out our voltage regulator with one from a Suzuki and also added real horns such as Stebel.
If you want to learn about the bike and really learn how to maintain it and make mods this is the place to be. About 99% of the FB posts and posters are "oh, look at me", here it is a little different. Anyone worth their salt on the FB page will always direct new owners here, it is how you weed them out.
I would recommend doing a search here on whatever you want to do first and then move on. Everyone is here to help you get through it.
bob