Negative Positive
Title: Installs and removes with ease
Review: I've always had good luck with K&N products and continue to like them including this HP-1017. This filter goes on and off well and the 1" "nut" on the bottom of the filter allows for a reliable way to remove the filter in tight spots or when the filter is on very tight and regular oil filter wrenches are not practical. I would like to have some of the black rubbery grip stuff on the bottom so that I could take it off by hand (some Fram filters have this and it is great). I've never taken one of these apart or examined it scientifically so I cannot vouch for its effectiveness but subjectively, I think it works well and I've not had any engine failures while using it.
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