- Joined
- Dec 20, 2020
- Messages
- 298
in the bubble point video it does look like that designHe didn't cut them open, but he started testing these filters in Jan 2021 (link below), so he had to have bought them before then and I'd say the Ultra he used was the wire backed media design.
Would you all like to see ISO 4548-12 Oil Filter Lab Testing Comparison, Efficiency & Capacity, Pressure vs Flow, Bubble Point, and Burst?
Sorry I'm late to the party, would it be possible to get some tests on K&N Gold oil filters (with the nut on top) to see exactly how they stack up to their competitors in the same price range? I haven't seen any meaningful data on their efficiency, at least from K&N themselves, and I have a hard...bobistheoilguy.com