I put up the same post at my other 7'er forums, I feel like i'm the only owner of a e65/e66 over here sometimes.
Got some Stealth Bulbs from ebay and threw them on the big body e66.
Not as bright as OEM since these are single filament bulbs as opposed to double.
4 - 3457 bulbs (2 in each headlamp for signals)
2 - 7506 bulbs 180 degree (rear signals 1 per light)
2 - 921 bulbs for reverse lights (forgot to take pic below)
Total time about 20-25 mins to install.
No more seeing the yellowish colour in the headlamps anymore.
Pics from my BOLD so sorry for the crappy'ness of them right now.
I also threw in some LED bulbs in the trunk, pics below.
Next upgrade spacers and spoilers cool