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Is anyone running the stock airbox with the K&N filter?

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Old 07-13-2007, 02:02 AM
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Yes and worth the $30 from Amazon.
Old 07-13-2007, 02:06 AM
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I noticed a difference, and the paper filter I pulled was 2k new and snow screen was clean.
Old 07-13-2007, 04:14 AM
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Yes, and also got it cheap on Amazon
Old 07-13-2007, 05:04 AM
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Default Even if it made 5hp the human body cant notice the difference...

of 5hp on a 340hp car. Probably placebo.
Old 07-13-2007, 05:12 AM
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Umm. Stock filter is just as much a CAF as the K&N (assuming CAF is cold air filter??)
Old 07-13-2007, 05:12 AM
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Skip it. You just run the risk of fouling your MAF from over oiling. Stock works great.
Old 07-13-2007, 06:02 AM
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Default blah....

I put over 140K miles on my A4 with one
Old 07-13-2007, 06:14 AM
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Default Not everyone is as lucky as you. Plus once those oiled fileters dry out they dont filter anything

At least with a paper filter you know you are always getting proper filtration. Oiled filters dont trap the small stuff when they start to dry out. If you saw ANY performance gains, not just mind tricks of a new mod, then I would say sure do it if you like. But no filters have shown any gains (dyno) so why waste your time/money and risk not protecting your engine?

I am also agianst cone filters or CIA's which are actually HIA. The only cone filter, open element, setup that is a truely cold air intake is X1-Racers over on the B5S4 forum, where he has a fully isolated carbon fiber charging zone for the intake to sit in. Other than that, highway is ok with your plain jane open element intake, but street driving and traffic is equates to loss of power.
Old 07-13-2007, 06:24 AM
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Default I don't get it for the performance. I get it for the ability to clean and replace with out

ordering a new filter or going to the dealer parts counter which is never open when I can make it.

I clean it and re-oil every 10k

It's a convenience thing for me.
Old 07-13-2007, 07:04 AM
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Fair enough. I jsut stock up on filters from online parts places.


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