I went with the PIAA H8 4150K sets
I went with the PIAA Extreme White H8 35W at 4150K and they look very close to the new AL's on the 2013 BMWs. I compared them to my friends 2013 5 series. I went this direction because the last thing I need on a long road trip is to have some dangling wire from the LED retro-fit inside my sealed HID light, shorting something while drive across, Nevada, Utah or Wyoming. Not many dealers out this way.
No codes, no rewiring, no hassle. I paid $99 for four of them from Amazon.
Just an FYI.
'08 535xi Space Gray | '01 330i Steel Blue
Johnny Kurtz | Advertising Photographer
Still Life Johnnykurtz.com
| Studios in Salt Lake City, USA and Dresden, Germany