I recently got new bulbs for my 01 b4 and i went for the 6000k bulbs much better dan the 4300k..i got them off hids4u.co.uk http://www.hids4u.co.uk/D2R-Upgrade-Bulbs-brilliant-white-high-quality-6000k.html they are the exact ones i got..cheap and are brilliant i have always bought my hids off these even for previous cars and are good to deal with and helpful and guick posting!!! one bulb out of a motor factors over here was €80!!