These arrived yesterday. They are 2500K Yellow Ion/Plasma H8 bulbs. Made in Japan. They were kind of stupid $ (about $45), but the quality and user reviews were very positive. Bought them on Amazon. Popped them in the M6. The picture is not very good, the lighting was poor & I took it with my iPhone. The yellow Halo Rings actually look really cool, and with the xenon headlights on...the yellow rings are still very prominent.

Was going to try them in the E70, but since I have many, many packs of GP Thunders...I'll just leave the 35d with white Halo Rings.