The great oil filter debate

The last Wix filter I bought when I changed the oil on my ecodiesel Ram said made in china on the filter when I took it out of the box, didn't sit well. On the EngineMaster show both Wix filters they tested dropped oil pressure at the top of the rpm sweep, the only thing they figured was the bypass valve opened, it didn't drop a lot of pressure. But that caught my attention, because the last thing I would like to see is the bypass valve open at max rpm and dump oil pressure and send all the junk back through the engine.