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2,331 Posts
K&N SUCKS. my 2 cents. Ive seen what it does to mustangs.

OIL filters dont suck, people dont know what they are talking about.

I have 100k miles on my Pro guard 7 OIL FILTER and my silicon reading is at 6. Im waiting for another analisis to be complete in a few more days. i clean my filter every 25k miles.
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