After reading this thread, I asked Purolator for the specification sheets on a couple of 14610 filters I was interested in as well. Got em within a day. I find that impressive. While the filters were different than those posted earlier, the data was almost identical. Sooo .... I sent an email to Fram asking for the same info on a couple of their 7317 filters I'm interested in as well.
All I got in response was:
"The efficiency numbers for these filters are not much different, the TG is 99% @ 20 microns and the FE is listed at 99%+ meaning it is fractionally higher than 99%, but we do not have the exact spec listed. " Compared to Purolator's forthrightness, I do not find Fram's response impressive.