i’m About to install Tab Performance exhaust on the Chieftain. Kind of new to the tune and exactly how this will work. The kit comes with the Hi-FloA/c, exhaust, and PV3 tune. So the question is this: Do I perform the tune myself? Is it a pre-set tune, I choose, plug it in, and download it to the bike? Can the tune be changed, is it only a one use tune or can I reinstall if I decide to go with a different A/c?