Wait what ?? How?!
i could only overwrite the ME tune with VT after the lock was removed.. I couldn't read the old tune.

The first time when connecting to the car, the very first thing was a warning message that the car already had another custom and needed to back it up before the Versatuner could write down its program.
On the tune page, you can compare two tunes as flashed, choose what you want to compare with the one you are working with, and then when hover the mouse on the number it shows the number on another map on a box.
Or at least this is how it working for me!

"Minimap" is basic, with a few changes like removing the check engine for cat delete, fans coming on sooner, a bite more oil OMP ( which fuck up the car on cold was that much burning eyes, and the point I theories the correlation on oil injector and engine temp, ) if they bother changes throttle response and IG dwell.


https://cimg2.ibsrv.net/gimg/www.rx8...0b89b57bb1.png

I highly doubt it was a ME than..
As it is not just maps, its also ecu software.

When I did mine, I had to flash oem map before I could do anything.
Thought it was 3 years ago, so they might have obtained the function to read them.

There's a map that sets minimum position of OMP vs coolan temp, but it's not brought forward by ME or VT.