Air Filter Filtration Test

In the top left corner is the heavily advertised K&N. Going in standard English (not Arab) book order (left to right etc.), next is the Amsoil air filter. (Click on images to enlarge.) After that is the Napa Gold paper air filter. [lightbox title=’Air...

Air Filtration Test

This is a contribution from Anthony of our forum board. showing some interesting results on air filtration/ flow tests. I want to thank AnthonyS for all the great work in taking the time to perform these tests. Of course these are not standard ASTM tests and by no...