Originally Posted by spc2125
I dont really see the need for an AP if you live so close to an awesome tuner. Enless your constantly making tiny upgrades with a bunch of time in betwee them and would need multiple tunes before uou reach your end result. Or like prrviously mentioned, if you want an e85 tune.
All depends of what your goals for the car are.
it's not just about the tunes, there are more benefits. The ability to switch between maps on the fly, to make small correction to launch control, FFS, adjust timing for bad gas, read CEL codes, reset learning without pulling the battery, live monitoring of data, logging, etc. Personally, I use mine to monitor knock all the time, it's mounted on my dash. I dick with launch RPM's and FFS RPM's as needed, and use it as a shift warning (the screen flashes white). I agree that you don't NEED an AP, as the quality of an open source tune is no better or worse than an AP tune (tho i've heard the AP allows the tuner to change a couple more tables, and has speed density support), but the additional features of having a handheld tuning computer are great.