I generally try to keep them in stock, though I believe I'm out of both the 20 and the 22mm at this time (I'm home now so I can't check). They've been on the website under GC8 Performance Parts for months

. I have a huge order of Whiteline stuff coming in, with several GC8 front swaybars amongst them.
Brian
http://www.subaruwrxparts.com