Actually I finally got off the filter roulette wheel, after the Mobil1 filters went from Champion to Purolator (Mann-Hummel) I found it impossible to determine who makes what and where anymore, filters have become, at best, questionable as far as performance and quality. I took the simplest approach, I drive Hondas, they warranty their cars using the 15400-PLM-A02, The Blue Can from Fram. I've never been able to get actual numbers on its actual filtration ratings. I just use it and go on down the road. All I know is (1) it's made by Fram (they won't give information on it, says it's "proprietary") (2) It's marked Made in USA, and (3) Meets Honda's Warranty standards.
I'm done chasing Unicorns.......