Got around to installing the HID 4300k Philips kit today. I had the XD H11 6K LEDs installed. I would first like to thank Securityguy with his input and help.
Prior to installation, you need to remove the clear plastic protection bulb case. I also cutoff the rubber grommet which held the wiring. The Legacy lights aren't installed behind a weather proof housing. You may want to keep the grommet on if you think you might change vehicles.
Passenger side, I installed the ballast and ignitor in the same location as Securityguy. On the drivers side, the ballast was the same. However, I installed the ignitor further down the frame, almost below the headlight assy (used 2 pieces of tape). I wasn't able to remove the jumper wiring (included in kit) between the ballast and factory light connector, as others. Without the jumper, the connection didn't lock down. I could pull them apart easily. With the jumper wire, everything snapped and locked.
So here's my pictures comparing the two configuration.
First, XD H11 LED (old)
http://legacygt.com/forums/picture.php?albumid=2339&pictureid=11099
Now the XD 4300K Philips HID:
http://legacygt.com/forums/picture.php?albumid=2339&pictureid=11098
I haven't driven the car with the new setup. Just moved the car to take the picts. But, it does look impressive. The downrange does look greater. I also didn't notice a color difference from the old LEDs. Btw I also have XD H11 LEDs in the Fogs, which were on in both pictures. Looking forward for some night driving.
The folks from XenonDepot are excellent to work with and stand behind their products. If you read feedback from others on this site (and other sites), I don't know why anyone would deal with other vendors. XD only for me !