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Thread: Air filter tests

  1. #1
    Regular Member korlinski's Avatar
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    Default Air filter tests

    I have been reading http://www.mkiv.com/techarticles/filters_test/2/ and wondered if anyone out there has had any negative effects of using a K&N Panel filter. According to this website they let through a lot of dirt.

    Dirt into engine = Bad???

  2. #2
    Regular Member Silentknight's Avatar
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    Unhappy Air Filters

    I hope that I dont get any problems, I've just fitted a K&N panel filter to my 2.2sri and done the airbox mod.

    I'm kind of thinking maybe I should have bought an APEXI filter now though!!

  3. #3
    Forum Moderator soulman's Avatar
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    Vehicle : Vauxhall

    Trim : Astra Twin Top

    Engine : 1.9cdti

    Year : 07

    Default

    there have been a few ppl taking their K&n filters out after reading similar articles

  4. #4
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    Default

    Are they seriously suggesting that you get a 14bhp gain by simply changing the filter? I apologise for being a little skeptical about their figures...

    Anyone care to comment?

  5. #5
    Regular Member korlinski's Avatar
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    Default

    it fairly simple to assume that if you put in a steel mesh filter like blitz, as the holes are bigger, they will let through more crud (technical term!!)

    Is it possible to get a performance filter that does not have any oil. ( i know K&N is oiled)

    Is Apexi oiled? Can you get a Apexi oiled for the Vectra?

  6. #6
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    Default

    wonder if you can get an apexi panel filter ? Looks like for japenese cars only.
    Last edited by rob 2.2dti; 9th July 2007 at 17:59.

  7. #7
    Regular Member parapaul's Avatar
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    Default

    Quote Originally Posted by korlinski View Post
    I have been reading http://www.mkiv.com/techarticles/filters_test/2/ and wondered if anyone out there has had any negative effects of using a K&N Panel filter. According to this website they let through a lot of dirt.

    Dirt into engine = Bad???
    I haven't heard of any bad results, but as above, several people have removed their K&N filters just in case....

    Interestingly, it says on the box my K&N came in "will not invalidate vehicle warranty".....wonder what Vx would make of that if my MAF got killed by a bit of dirt that somehow made it through?

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    Default

    As I said before on this subject,my maf failed using the vauxhall paper filter from new to around 17k.I then fitted the K&N panel and had 30k trouble free until I sold the car.

  9. #9
    Regular Member korlinski's Avatar
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    Default

    Does any one know,

    Are all vectra-c panel filters the same size? Or does it vary from engine to engine.

  10. #10
    Regular Member korlinski's Avatar
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