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Thread: K & N filters do they really do much

  
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    mikedes's Avatar
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    K & N filters do they really do much

    I've got a 99 Astra sport 1.6 16V eco and have always thought it's engine to be somewhat staid and not particularly willing under hard acceleration in the upper 3 gears.

    Does the K & N induction kit (part no 57i-0270) do anything to significantly improve things and what other mods might help?

    Regards MikeDes

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    A5TRA 59ORT's Avatar
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    you are better off de-rescriting your air box

    do a serach under de-restricting it has been done to the death there is also a very good how to in the how to section

    fit a vectra C cold air feed

    agian search there is a how to and the subject has been covered 100000000000000000 times before.

    get a K&N pannel filter.

    the resons to do this over an induction kit is
    a. its cheaper
    b. the engine bay gets very hot so an induction kit would suck in all this warm air and reduce performnace but by using the existing air box you will sheild the air intake from all the heat.

    this won't make your car any faster but it should improve the throttle response and iron out any flat spots.

    it did to mine and i have got the same engine

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    wozzaa's Avatar
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    Would something like a bmc cda help further since its encased in carbon fibre?

    Know there not cheap but there supposed to be great induction kits. Know a few people that have them fitted and said they really have made a difference but non on a vauxhall.

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    On the money v power gains front - your better off going down the derestricted Airbox etc route. Which A5TRA 59ORT has expalined perfectly.

    BMC's are very good on a turbo'd car.

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    i noticed a slight difference when i put in a K&N filter but when i de restricted the air flow OMG i could tell that it had been done a lot more than the K&N a lot more responcive and more pull mid range

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    ive had both on mine and ended up de-restricting my air box, the K&N induction kit makes a nice grunt but i find the box makes the car run alot better and smoother

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    Thanks for the input guys, looks like derestricting the airbox is the way to go then and perhaps the K & N panel filter and Vectra cold air feed just to be sure


    MikeDes

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    ganda_sxi's Avatar
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    Quote Originally Posted by chewitt
    i noticed a slight difference when i put in a K&N filter but when i de restricted the air flow OMG i could tell that it had been done a lot more than the K&N a lot more responcive and more pull mid range
    what engine have you got chewitt and do u mean the air flow meter? If so how is this done? is it easy etc etc

    sorry for hijacking thread.

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    Think he just means de restricting the airbox.

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    think he might do reading it now.

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