Man, that was (one of) best $6 mods I've done so far. Got a 2" roll of Frost King foam/foil self adhesive tape and wrapped the entire A/C duct in front, and drilled out/removed the rivets and the vent cover plate behind the pedals. It took about an hour and scraped the hell out of my forearms from the ragged edge of the front mesh grill. HOWEVER, now, I'm getting consistently COLDER and STRONGER A/C air flow - awesome mod. Thank you very much - just in time for the So Cal muggy heat wave!