Fram does offer a filter designed for long-life synthetic oil (offered only in Canada). Simply called "FRAM Synthetic Oil Filter", it's supposed to last 11,000km. If you can't find that, their "Extended Guard" filter is also supposed to last 7000mi/11000km.
http://www.fram.com/products/oilFilters.php
Descriptions for both filters are identical, so I have no idea what the difference is.
I popped on the synthetic filter last oil change, but I'm approaching the 5000km mark and starting to get a bit nervous. I'll probably check the oil around that point just to make sure that there's no excessive dirt/debris in it.
Worst case, just replace the filter around the 5000km mark. Good idea to top off the oil at that point too... my 3.5L burns off 1-1.5L every 5000km, plus if you change the filter you'll lose whatever oil was in the filter too.