I run K&N and they have about a 15-20 micron rating. I am considering changing back to Wix.Nothing wrong with K&Ns NOW, but the company that makes them was bought by Fram, and they are starting to make some of the worse filter out there. K&Ns are still damn good filters, but I have to wonder for how long.
I run 2 in parallel, so the oil is split between the 2 of them, mainly to lower the flow restriction. The filter mount to the oil cooler, and it uses 2 filters. More for the cooler than the fact that it uses 2 filters.
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