As of others have said, I won't use the Fram part numbers that have fiber end caps. Please watch the attached video as it seems the e-core design that uses the metal leaf spring with integral by pass valve might also be a concern.
BTW I posted this video the other day but my post was deleted by the BITOG team saying that I needed to add a comment regarding the video instead of just posting it (my mistake, I admit it).
It needs the fiber disc gasket that the (older OG) Ultras had. An unfortunate design flaw. That actually isn't a problem for the PH Extra Guard & TG Tough Guards, the fiber endcaps act as the gasket.