Yes, and like I said, the pressure goes up on the K&N the same reason the K&N air filter flows more air. It lets more "stuff" through. "Stuff" is everything. Oil, dirt and all. I'll stay with WIX.
My 505 had a couple pounds less oil pressure with the K-N , I think less restriction / high flowing filter. When I changed to the m090 mopar filter it went up 2/3 pounds.
I watch it very closely, have never had enough hot idle oil pressure to suit me . I have to run short filters because of shroud room.
