Racing
oil filters like Wix generally filter down to 60 microns as flow is more important in a race engine that maybe pulled down after a couple of race meetings than fine filtering. I wasn't keen on that so went for a Canton
oil filter who claim 45gpm flow and filtering down to 8 micron with their microfiber filter element also I can screw on a normal HP4 filter. Cantons microfiber filter element appears to have better filtering capabilities than paper elements.