I was curious what the Orielly's Microgard oil filter efficiency ratings were, I've got a few in my oil filter stash I picked up on sale. I know they are made by WIX and seem to be built well.
They are just a 5K jobber filter really. Nothing wrong with them. If efficiency is important to you, you may want to buy a better filter (or stick with OEM.)
That being said...Hyundai filters get bashed for not having good efficiency ratings.