FWIW & IMHO:
Might want to consider doing a search over on the "other" board. There was a link going to a set for sale on e-bay, but the general consensus of opinion was that they were of questionable quality. I don't think anybody of reputable quality is currently making any for the turbo Buicks. How about Sylvania Silverstars & Kirban's hotwire kit. I am currently running Sylvania Silverstars but have not bought my hot wire kit yet. I honestly can't say that the Sylvania Silverstars are really any brighter by much, but they are definite white and project somewhat of a different beal spread. I am very happy with mine.