About KeyPro

You have to do a koeo self test to finish programing to get the dome light to stop blinking  

Ford JDS and a passthru to do it properly.   You can get fords to run with a parameter reset and key programming. The VIN will not match vehicle if you do this, and some vehicles will throw codes but it will start. I cannot confirm this on every single vehicle, but on F series, Focus , and fusions from the same era it is a non issue. Most of Fords systems are the same so it should carry over to a Mustang   Most of the vehicles towed into us, we do the parameter reset and program keys first so we can drive it into our bay. Then write the vin after it is inside.  

A j2534 will work and a ford subscription and u can do what u need and the obvious 2 keys because a parameter reset is performed after programming

As far as I know, it would need to be synched.  Ford IDS or J2534 tool would be ideal.  You may be able to do it with Tcode/MVP/Smart pro under parameter reset requiring 2 keys.

I have a 2014 ford mustang GT 5.0 block, PCM appears to be bad. We have a doner PCM from the same gen engine/trans will it fire up with key reset or does it need to be synched, also what tools are required to correct vin/mileage? can anyone give me notes on on the devices I can trade eeprom data from? thanks in advance.