have to agree with oranoco there as it is obvious that all maunufacturers that fit these for is just for the sake of it.
I cant imagine that a turbo spinning at up to 200,000 rpm and suddenly havings it's exit cut off would be a problem, and would in now ay impede the turbine from spinning.
Of course it could be that esc uses smaller components and less boost so is not needed as std ?
I think ford fitted them just for something else to go wrong so they could pay out money for repairs as they are now a registered charity ?
tabetha