I have a 6300k HID kit in my low beams. And I have sylvania silverstars in my IS300 fogs. The bulb size on both is a 9006. My 1st question is can I switch out my 6300k HID bulbs with a lower K bulb if it's the same brand and size? Also if I put an HID kit into my fogs would they look any different since the bulb wouldn't be totally white

 

you should be able to change the bulb if it is the same brand. its just the capsule that changes the K. as for you fog light question, im not quite understanding it