I replaced the K&N FIPK with an AEM filter. The AEM has proven to be an outstanding choice.
I have had the AEM for over three years now. It is very easy to service. The filter shows no signs of wear from the numerous times I have cleaned it. The intake throat has no detectible contamination residue in it, when I run a rag around the inside of the pipe.
The K&N always had an oil residue and some slight detectable grit mixed in.
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