Thanks, Seattle - I didn't perform the "delete adaptations, air mass system" service functions, so let's hope that doesn't haunt me later

I can tell you that the OEM BMW part from ECS was labeled with all of the BMW and Bosch identifiers one would expect to see. The metal grating medium/film appeared a bit different (more robust) from the one I removed, but that just may be 70k+ miles of use.