Sylvania ZXE 9005 in 2012 fogs.
All of you light gurus are going to kill me for this, but I spent $60 on a pair of blue coated halogen bulbs. The fog lights in the 05+ GT mustangs are 9145/H10, but they don't come in those types for the ZXE's. I heard a long time ago that you could swap out the 9005s in most cases with h10s and you would only have to modify the locking tabs slightly for it to accommodate the housing. I purchased these lights because they claim to be the purest,whitest halogen bulb on the market (4300k) and I must say I'm impressed. I have HIDs in my raxiom headlights (also 4300k) and the light from the halogens is just slightly less white than my HIDS, but the fog lights are far brighter than my headlights. As a matter of fact, I'm considering removing the HIDS and putting the ZXE's in my headlights as well. I guess the only concern I have now is the actual life of these bulbs because at 55watts, I'm sure they get plenty hot. Hotter bulbs inevitably burn out quicker, but Sylvania is combating the issue by supposedly "adding xenon gas" to the bulbs to help with their life. I know there are a number of threads on here about HIDs in my fogs+headlights, an for awhile I was convinced I needed HIDs to have bright headlights but this is not true. Just in case you guys wanted a cheaper, more reliable, and still hid appearing light for a fraction of the cost look into the ZXE.