Just picked up an interesting titbit from my Ford dealer when ordering the FPM 375.
There had been reports of software clashes when PCM updates on some (not all) cars had been made with the end result that the new mountune map wouldnt run.
When I asked my dealer he said that it only affects software versions ending in ‘YC’ or ‘ZC’. Having checked mine on his database he said that mine was OK. So have coughed the deposit.
Current leadtime is about 6 weeks.
Hopefully mountune have (or is working on) a mod to cater for those affected.
.