[audi91]

Hey guys,
I've tried searching, but getting mixed results. So after 3 days, i've decided to ask. I have a 2005.5 2.0t a4 and want to change the fog bulbs (the ones at the bottom of the bumper).
What are the best piaa bulbs to match 6k hid and what is the bulb number. Some places tell me it's h7, other say it's h11. I just want to make sure i get the right ones. If any one knows a good place to get them online, please let me know. Thanks.