Google PUMA. Don't guess. You chose not to take the time to understand at your own risk.

This will be super easy, right? Used car dealer will pay whatever it takes, turn off the light- car will be perfect. Then you buy your tune, everything works as planned. If the idiot BMW dealer misses something and your tune is installed- and nobody will help.

Best of luck. You clearly don't need any advice.

Actaully, all you need to know is 'has anyone cloned a DDE and been successful?' Can't help there. I'm out