MY13 1LE Mustang Dyno Numbers

[Camaro Dude]

Originally Posted by Kendall421

.....Another note, I have an X4 tuner and was going to use it to backup my factory tune first before I take it in. Then after tune, back up their tune into the X4, so I have both tunes saved. They highly advised against me plugging the X4 in and saving the factory tune. Said it could cause the computer to lock the settings or at least some of the settings, not letting them get the best tune on the car. Is this true???? Anyone here confirm that? Or do they just not want me to have factory tune and their tune saved?

This is my first experience with having a tune done, so looking for input.

I would ask Ted @ Jannetty, since he is a X4 expert.

I've got the X4 too, but I'm no expert, lol.

FWIW, I'm very happy with his custom remote tune with the X4 device.