If I lived in England all the MMC options would probably work fine but would you pull your ecu out and send it to the USA for a flash? Praying that the postal services, customs and god knows in between doesn’t muck with it. Like plug something into the ports to see what it is and screw up the flash, no, if it is unlocked then a local tuner can read what you have currently and at least transfer it to the unlocked ecu as a base map. Then working from there might be possible if the ecu from G56 (the only folks to respond to my email inquiry) gets scrambled in some way.
