As you can see tuner threads are like oil threads, everyone has a different opinion and everyone is correct. It depends on what you’re trying to do. The current Harley tuner will only allow you to tune within EPA specs. I prefer the Power Vision because most dyno tuners are familiar with it and it will allow for infinite adjustability. The TTS is also excellent, but fewer dyno techs are going to know how to tune with it. Vance & Hines says no dyno tune is necessary with a FP3, but that’s debatable depending on your desires and circumstances. You can auto tune with a FP3. People like it due to its convenience because it requires no physical connection and the software is easy to use.
If there’s any chance I was ever going to have the bike dyno tuned, I would go with a Power Vision simply because that’s what most techs are going to know how to use, and it allows individual parameter adjustability.
Last edited by PeteF; 04-13-2018 at 10:01 AM.