Which ever route you go, please post pics. These are not my priority mods until I see ones that come close the the newer 3 series and X3 version as they are extremely well lit in white. I've seen some after market ones on the street and I think my stock yellow looks brighter.
The brightest I've seen are Persian54's, but I believe they were custom fitted for his Z4.
2015 BMW i3 REX