Just an FYI. I took the glovebox off to get a look at the filter. I was underwhelmed and may go the DIY filter arrangement. I understand why they don't have filter surround supports to port and starboard (so you can wiggle it in past the superstructure) but it _could_ be a better fit all around for sealing purposes.
I did shake the thing out pretty thoroughly, realizing I couldn't get the microscopics out. I've had it 6+ months and it looks like it needs changing. I guess the 90 days that others advise is on the money. I hear the 2005 filter is a different unit and more expensive. Phooey. 3M Filtrete® here I come. Just find the right size to get the best cutdown and maybe a taping of the surround. I'd love to hear SOA's reasons why their unit is _that_ much more superior.
Happy Independance Day America!