I put some cree LED H8 plug and play units in place of my stock Fog bulbs. I had sitting around from an earlier mod I did on my E90 angel eyes. They seem to match perfectly and throw no error codes. The mod took all of about 20 minutes for both sides.
Side By side with factory bulb
With Angel Eyes on
Next up I am getting blacked out kidney grills, also adding European Rear Fog Light switch