I have a PC-V on my bike, full Area P, flys out, AutoTune, and air filter. The bike is amazing compared to stock. That said, if I had it to do over (and I don't, bought mine the way it sits) I'd reflash the ECU. Every part bolted on is a potential failure point.
ECU reflash adds nothing to that equation. Just a different map. Believe guys on this forum are getting very nice dyno numbers with the reflash, flys out, and full exhaust.
Good luck, you will be amazed at the difference. I am currently 30hp over stock on mine, which is about average for the mods.
Barry