No, that WAS the filter...BUT due to a "discovery" made in testing at a lab dedicated to testing automotive oil filters, a small internal change was suggested via proper channels, and the "AB" version appeared. It should be noted that at the time these discussions took place, it was reported back that there were "no known failures" in the field with the "AA" series. I would further add that at least a couple of our earlier (and lesser driven) Vipers still have the "AA" filter in place, though I do plan to swap them out soon.
