Dont you hate new versions of light bulbs
I had the same problem with my JDM projectors for the Mazda, low beam was H3C, not sold in the US until recently.
Don't worry, it won't be long before someone makes a modified kit for the low beam.
Foam... do you mind taking a picture of your high beam maybe one original and one replacement? I must say witht he HID, its sucks flashing the yellow highs...