I just bought this AEM Dryflow to use instead of the Motorcraft in my 2018 Ford F-150 5.0L. I'll be keeping the new Motorcraft as a spare to use for when I clean the aem. Anyone have good experiences with these aem filters? I haven't used them before. But for $40 US shipped to my door from amazon it seemed too hard not to pass up... they advertise an efficiency rating in the 99+ % range.