Can anyone tell me what tire sizes are available for selection in the computer of a 2014 Mustang V6? I'm told that you can't choose revs per mile or tire diameter specifically, but can choose from whatever tire sizes are available for selection from the factory. I'm trying to figure out if the computer can accommodate a 255/50R19, which I believe translates to a 29" diameter. Your help is appreciated! Thanks!

 

I'm not aware that the 2014 is radically different from the 2013. You just plug in your SCT to upload a tune and can change the tire RPM as long as your tuner left the option open.

If you are asking what can a Ford dealer upload, then they are limited to only what was an option on the car. Very few that I know of will upload a tune update though so you need to go aftermarket.

 

The stock tires on a V6 automatic are right around 28 inches, manual are 27.6. My car came with 255/40 19's that are 27 inches. 29 inch tires are not going to be programmable from Ford and might rub on the front.