Originally Posted by RogersWRX
I know a lot of people have cut or made filters to replace the $37 to $50 (yikes!) factory cabin air filter... but I've found a couple of standard air filters that fit and work great!
Purolator - Part # 33590 - $5.99 from Pep Boys
Fram - Part # 3916 - $6.99 from Pep Boys.
Both fit with no modification - just remember, rubber side down, as the air flows from top to bottom!!
Replacement should be about every 10-15,000 miles.
You have to take out all the screws around the inside of the glove box, two on the bottom and one on the right side of the dash.
hmmm ... are those engine air filters? I'd be a little convcerned that they would filter TOO well and block the airflow.