I picked mine up when I was still a Bavauto employee...The H8 bulbs have already been warrantied. Lasted 10 months.
I think the problem with burning them up is because I run the lights all the time. Why I think this is because I used PIAA bulbs in my last 5 cars and they would burn out within a years time. On the BMW the H7s would burn out every 6 months.
Those are great and glad you are enjoying the difference. I've been running them for two years in the tule fog and love them.