I just bought the 3000k bulbs. I wanted the yellow fog lights and with my always on fog light mod. I usually drive with the angel eyes and the fogs on.

 

Lows

Fogs

Lows and Fogs

 

HID fogs help with brightness low on a clear night road, but i'd say my stock fog bulbs were better in actual foggy conditions.

 

My headlights are usually always on but if I put the Angel eyes on I figure I may turn them off and run the Eyes during the day. If the stock fog light bulbs work better in foggy conditions then it's best I leave them in. It gets a bit foggy in bfe for some reason lol.