Thread: Are K&Ns really that effective?
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Old Aug 17, 2009 | 12:23 AM
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pelked1
Joined: Apr 2004
Posts: 245
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From: Seattle Washington
Default Re: Are K&Ns really that effective?
Originally Posted by pelked1
I will never use K&N's again. I did have a pair in my Crossfire at one point, but after reading up a bit on them, I would recommend to anyone to stay away.

What it boils down to is that they flow a little bit more because they do not filter nearly as much dirt.

Is the tiny hp increase worth the extra dirt that is getting into your engine?

http://home.stny.rr.com/jbplock/ISO5011/SPICER.htm


This is also an interesting test, although not nearly as scientific:

Filtration Testing for Amsoil, K&N, Napa, Jackson Racing, Baldwin, and Mazda air filters on a Miata
Noticed that the first link that shows how poor the K&N filtration has changed. Here is the new link.

ISO 5011 Duramax Air Filter Test Report

I will NEVER use a K&N. A lot more dirt into your motor for hp that you can't feel or a mileage increase that you can't detect.
 
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