I blew out a foglight bulb the other day so it was time to try the Hoen Xenonmatch H3 bulbs. They are far more reasonably priced than anything from PIAA at $29.00 a pair. Shipping/handling was a little steep but it was worth it.
I didn't find any pictures of a comparison between stock and the Hoen Xenonmatch so here is one. The driver's side is noticeably whiter and brighter than the passenger side with the stock bulb. You can also notice the difference while driving.
Me likey.
Added info: I discovered that both of my fog lights were quite loose with the screws having worked themselves out several turns. I have not previously messed with the fog lights. You might want to pop off the trim and check to see if you have some screws loose.