Originally Posted By: crazyoildude
i said it before if the oil holes look much smaller and you are not blind you will be able to see for yourself, a 5 year old could see.
As pointed out many times, it all depends on the total flow area of all the holes or slits added together. As has been shown already, if the slits are opened up pretty good, and with the large number of them, the total area is very large ... much larger than the total area of the base inlet holes or the filter mounting spud ID.
As also mentioned, if you do by a filter with a louvered center tube, take a look down inside before buying to ensure the slits are opened up pretty good, and not opened up just a hair.