i dont have the silverstars, however, last night i did pick up a set of the Phillips Crystalvision ultras for my truck and a buddy's F150. I couldnt bring my self to spend 85.00 on the PIAA's when these were only 30 bucks at Carquest.
Anyhow, they are not in my Ram yet (maybe tomorrow), but we did toss them in the F150. They are superbright, crisp and WHITE!!! They have a slight tint of blue to them, but so far they seem to be amazing. I think they were rated 4000k. just a suggestion, but carquest told us that if we didnt like they bulbs (even after installation and usage) they would refund the money under some customer satisfaction warranty. might be an idea with yorur silverstars if your not happy. check with the vendor where you got them.
ill post if interested when i replace one compared to the stock one and let you know if they improve the dual headlight system in my 2010.