If you are getting a new set, I would go with silverstars like others have said.

If you are interested, I have an old super white Xenon light bulb from back in the day, when I used Xenons, that is still in great condition. It is a H4 12v 100/90w, and it is made by Bio Light. I don't know if this will match your current setup, but PM me if you are interested, and I will sell it cheap.