Ivan, or The Retrofit Source/Lightwerkz. These guys might be pricey but they sell incredible products. I just got a set of FX-R bixenon projectors to get rid of my burnt and otherwise shitty single xenon ones, and their customer service is the best I have seen in a long time. For quality high lumen output bulbs, get the Osram CBI D2S. It's the ONLY 5000k colour output bulb that still puts out an excess of 3200 lumen, which only the yellow-ish 4150K Phillips 85122 put out.
'02 ///M5 Imola Red / Imola Red '09 335i Alpine White / Coral Red