The research has been 16 years of spinning off fram filters and spinning a new one on with each oil change. Many different cars and even motorcycles. I just put one on last weekend on my mustang. Bought a couple spares as well.
"It works" isn't validation that they're good.
Basically, there are better products out there. Purolator is one of them. From dissected filters, to oil analysis, to whatever, Fram are consistently found to be among the worst of the field.
Purolator, from my perspective, appear to be the best in terms of both price and performance. They always grade out well, and are a few cents more than a cheapy Fram.