Cleaned out the Balt in the garage today, took the Cabin Filter out. I can'nt believe any air was coming out of my vents. You can't really see in the pics, but there we're bugs, rubber, and all kinds of shit in it. Put the new one in and its like night and day with the airflow, both in terms of force and smell.
yea i did mine a while back... wasnt too bad for not changing it out for a year and a half. pretty easy to take out. its in your manual, shows you how to take it out and what size you need. got mine at autozone for 15 bucks just about. walmart doesnt carry them.