Okay, after investigating this some more, it seems that there is a difference in the lights between USA and EU, that's not just coding...
EU cars seem to come with
http://www.realoem.com/bmw/enUS/part...&q=63112296303
US cars seem to come with
http://www.realoem.com/bmw/enUS/part...&q=63112338064
The lowe powered version of the Xenons.
So while this coding gives you the moving headlights (which absolutely works!) it doesn't give you the increased brightness the EU lamps have.
Now I need to start saving for those EU lamps ... :|