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Originally Posted by Jaxonalden
...Air flowing through a tacky oil impregnated cotton media will catch more dirt than a dry paper filter. If the dirt is caught in the paper the draw of air can work it through. Once dirt is caught in oil its there to stay until the break down solution is used to clean the filter...
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That doesn't make any sense, or at the least is an apples to oranges comparison. Sounds like it's straight from the K&N website.
An air filter is a balance (read compromise) between absolute protection and performance.
IIRC, the K&N filters down to 30 microns while the avg. paper filter filters to 8 microns - an almost 4:1 difference. K&N's afford marginally greater performance while paper filters seem to favor greater protection. Oddly for both, the more they filter, the better each filters, but performance lags off as this occurs. You clean and recharge the K&N and replace the paper filter.
Interesting that neither Porsche, or any other manufacturers that I know of offer K&N type filters. If the gains were so stupendous, you'd think they would, if even only as an option.
I'm not advocating either, use what you want. But realize that there is a definite trade-off and make your decision using this knowledge rather than the more than prolific hype surrounding K&N's.
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