Best Peformance Air Filter???

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  1. Best Peformance Air Filter??? 
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    azz
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    Hi all need some expert advice, i want to get a performance air filter but dnt no which one to get.

    I keep hearing people say pipecross and some say green cotton. Which is better or is there another make i dnt no of?

    Im driving an e46 325 compact.

    Appreciate any advice

    Thanks
     
     

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    Personally I prefer Green Cotton - Always used them and never needed to change, prices always pretty good too - about £45 notes is the average!

    Yours will be part number P437722 for a panel replacement filter

    Mike
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    azz (10-05-2009)

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    thanks buddy just waiting for it to come!
     
     

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    My K&N has always been trusty.... beware of foam ones, they break up after a while (a mates engine got totally b*ll*xed by one....).... I just hoover my K&N once a month.... :-)

    Tom
    I am not an old git........................

     
     

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    ITG are also very good
     
     

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    hks air filter good...
     
     

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    OMG, if you are trying to decide which air filter to buy, stick with what was there.
    It already gives you a squillion extra BHP.
    Clear your heads and get ready to run.
    Remember, the best times are yet to come.
     
     

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    As always every action has an equal and opposite reaction. Best for what? Filtering or flow, flow =bhp but not always lbs. Most important for me would be filtering on a road car, green offer a larger surface area than standard resulting in both better flow AND filteration. They are dry so dont require constant oiling, they are cheap and easily available.

    What ever you do the difference in performance is mostly all in your mind tho, NA engines dont respond well to simple tuning these days like they did in the 1970s when they came from the factory with tat bolted to/in them.
     
     

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    Got a pipercross on mine with the heat shield and that sounds the best, slow acceleration without an exhaust you can hear the filter, unlike like some where you have to floor it to get it to make a noise, I reckon Its got better pick up from it aswell, as Unknownsoldier said beware of foam ones but thats the ones you buy from motor-world for £15 I wouldn't go there at all, I've heared of a few stories about paper filters, but I've always used foam and found there the best for filtration sounds nice and deep and gives the car a bit more grunt but you will pay £150 for the heat shield and air filter as you really need to keep the hot air out the filter otherwise you will loose power, so you will wast £60 on a filter that only sounds good
     
     

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    cold air is a must, on NA engines especialy. I did have a table of test results on my pc for dozens of air filters, both flow and filtering, cant find it for love or money now, cantt recall the results either, but google could unearth something.
     
     

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