So AEM filter is same thickness as French President = 1 macron?For $35 on amazon the AEM dry filter not only flows better than OEM, protects really good too. When I inspected the inside of the stock air box (top side) post filter, I was expected tons of dust after 40k miles using the AEM. It was actually clean to my surprise.
I think it filters down to 1 micron. A human red blood cell for reference is 5 microns.