I stopped by AZ lastnight and looked at the two new STP filters for a couple of my vehicles. The 9972 Toyota filter said Made in Mexico. Looked very similar to a Fram Endurance, better glue. The other (22500 equivalent) said Made in USA and looked very "Champ" like. I thought they were all going to be PGI, but maybe like their extended filters, they are using several manufacturers?
The USA is probably a left over. . Just go to Oreilly or Advance Auto if you want the PGI models.