This is the same speculative commentary seen in every forum on the web. That somehow K&N filters "must" be inferior because of....pick your reason. They've been tested, raced, proven - over and over again. They have never been shown to let in more of anything but air. A proven commodity to allow more airflow to your engine without negative result. Use them or not they're fine.
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Denver Steve
Carrera, Cabriolet, 6-Speed, Black/Tan
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