Thanks for your efforts as always Car51!
I'm guessing this filter was manufactured st the former Champion Labs factory in Saltillo. Louvered center tube, BPV with spring external to the dome end cap, but interestingly recessed into the center tube to accomodate a coil retaining spring instead of leaf spring. Looks like solid construction in a North American made filter.
I called the company (Federal Mogul) a while back and posted their clarification I received that these filters' efficiency is 99% @ 20 microns and is rated for 8K miles on conventional oil or 12K miles on synthetic oil.