I am clearing out my Porsche parts closet.
I just put up a Porsche Boxster 986 K & N Air Filter 33-2773
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1,1&item=4565438947&sspagename=STRK%3AMESE%3AIT
I can't remember how much I paid for it but $20 sounds fair right?