Just wanted to post up some info on my HID install for my lows and fogs I did this weekend on my 2013 Fusion.
Getting to the bulbs is not that easy. The manual actually tells you to have your dealer replace you low beam bulbs for you. The manual actually tells you to see the dealer to replace nearly every bulb in the car.
I went with 55w 6k for my lows and 35w 6k for my fogs.
A few notes:
1 - I needed a relay harness for my low beams. My lows would not come on at all
when the car was on. They did work fine if the engine was off. But as soon as I started the engine they would go out. I did not need a relay harness for the fog lights.
2 - I removed all the easily accessible bolts that were holding the headlamp. It allows you to move around the headlamp a bit to make reaching in for the bulb a bit easier.
3 - While installing the driver side fog was very easy, the passenger side is a PITA. The windshield washer fluid tank is right behind the light. So you need to reach under and up to get to the bulb. Putting the HID bulb in and tightening was a PITA. I ended up getting it in place and then used some pliers with tape on the end (to not damage the wiring) to tighten it.
My parking lights are super yellow in comparison. So I just orders some LED bulbs off of ebay for about $7. The parking light bulb size is: W5W
I'll try to get a pic soon to post it up here.