I bought the new Ultra version and I can say it's better than Regular Silverstar version. I'm not talking about their life, they're much brighter, whiter than the old version.
Two years ago I changed stock bulbs to Regular Siverstar, they were a little brighter and whiter but not much. One died after 4 months and I decided to go with PIAA, cost about hundred per pair but have 1 year warranty, and the result is much better than old Silverstar. I saw this Ultra 2 weeks ago and went to buy it with rebate from Pepboys and very happy with it. Nothing wrong with the PIAA but this new Ultra Silverstar is as advertised: brighter, whiter, and wider beams. To me it's better than PIAA or might be it's new and PIAA is getting old after 2 years of life. Like I posted I don't know about their life, they're only 2 weeks old.