I just finished putting in my HIR 9006 bulbs for my fog lights which i got off ebay.
They are amazing especially for the price compared to HID's.
First is a pic of the car showing the foglight on the (actual left of car)right with the HIR bulb the ®left is a silverstar from sylvania that is 2 weeks old.The fog on the ®left has a cracked lens and has a slightly diminished output in comparision.
The other 2 are facing my white garage door showing the actual lightoutput and its footprint.
You can see from a distance of about 10 feet the fog on the ®right is none existant while the (L)left one is nice ,bright and wide as a fog should be.
I would much rather have HID's for them but until i get a pair of 2000k bulbs these will do just perfect.
I also intend to make the fogs amber in colour to add the contrast needed in bad weather ,plus i love the look.
The thrid pic is about 3 feet from the door where it shows the fogs actual output is vastly increased.
The silverstars are 2 times better than the stock oem bulbs, but the HIR's are 4X better than the silverstars. They are not white or blue but more like stock bulbs with higher output. We shall see how it goes for life and performance over time.
Like i said it is worth every cent.