I always hear of new cars with HEPA, etc badace filters, do our vehicles have any type of filter that could cut the blower airflow if it got dirty? I remember reading in a mustang manual they recommend changing 'cabin air filter' at like 30k, I've never heard of this with f-bodies? Is there such a thing, and if so, would replacing it/cleaning restore better airflow? curious....

 

no.

 

Make sure there are no restrictions on the cowl. ( The black piece at the bottom of the windshield if you didn't know.