I am having the same problem,just got a set of 9006 Silverstar Ultra and put them on tonite.Not impressed at all,they look a bit brighter,however,yellowish jsut like the OEM ones.
So,right now thinking about getting some very very white ones for the fog light so I can turn them on at nite to compensate a bit of the yellow color.I am going to get some H10/9145 white bulbs tomorrow but I don't know how to put them on,have to take the whole front off? Any other easier way to just replace the bulb? Thanx guys!~