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K&N air filters

Discussion in 'Warranty questions' started by venona7, Jan 23, 2010.

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    venona7

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    Would replacing the stock air filter with a K&N air filter represent a real upgrade in performance? Just wondering...


    2006 330i sedan
    Sapphire black
    Premium/sport packages
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    steven s

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    In a word. No.
    Might even decrease performance.
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    tiFreak

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    I don't think so either, I have a cheap cold air intake on my car that came with some generic cone filter on it, after driving for half a year with the original filter I swapped it for a K&N cone filter and didn't notice any difference in performance, not even on the butt dyno

    that said, they are a reputable company, and because the filter can be cleaned and re-oiled there's no need to replace it, so if you need a new filter for your car anyway you might as well get one
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    steven s

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    tiFreak

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    interesting to know, oh well, it's getting swapped for a Dinan set-up this spring anyway

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