There is a LOT more to oil filters design than their internal appearance. The engineers know what micron size of dirt is a problem and what size isn't. A shot gun "super micron" filtration isn't the answer. You want to only filter out the size particles that would damage the engine. Anything more, you reduce oil flow and make the oil pump work harder. Also these super micron filters clog much sooner with "safe" dirt and then are forced to open the bypass valve, which means totally unfiltered oil is circulating through the engine. You have no way to know any of this is happening. Unless you are willing to study the engine, determine what micro size of dirt needs to be removed and then test the filter paper in your choice of aftermarket filter to see what micron size it does stop, you are gambling with the life of your engine. And the reason you would gamble a multi thousand dollar engine to not use an OEM filter is to save $2-3 every 5,000 miles?