I thought I would share my latest project...
After removing the A/C and evaporator from the air box I noticed a lot of debris coming through the vents, the fan was also noticeably louder. Well this was almost 10 years ago, I finally found a working air filter solution.
I took some measurements and picked a FRAM cabin air filter that fits almost perfectly in the void where the evaporator came out, it's nestled in between the fan and the heater core. I had to add some hardboard on the sides to position the filter panel tightly in place. Simplest solution would be some open cell foam air filter medium but I couldn't find anything thick enough to fill the void and not get pushed through by air pressure.
What do you guys think, any better ideas?


