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Thread: K&N Air filter for a diesel

  1. #1
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    Default K&N Air filter for a diesel

    Lo all, Went to enquire about a K&N air filter for my 52 plate 2.2DTI and was informed by the chap behind the counter that there was no real gain from fitting one because there is already sufficient straight line air flow to the turbo.

    OK, is there any point to buying one apart from it will be the only one you need ever buy

    Was the guy talking tonk or is there any real world gain for dropping approx forty quid on one of these?

  2. #2
    Full Member bobssignum's Avatar
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    Vehicle : Signum 2.0 DTi

    Trim : Elegance/Elite

    Engine : 2.0DTi

    Year : 2003

    Mileage : 73350

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    Performance wise there is only a small gain using a K&n on the dti,s so the guy was intrinsicley correct , depends on how long you plan on keeping the car , it will take 5 years before the k&n will start paying for itself
    Driving vauxhall,s for 30 + years
    and still loving it

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    Regular Member dawasdave's Avatar
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    As said No real gain on the derv's bud.... Its more in the head the the car feels like its breathing better but in the real world it probably isn't.....

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    KK, thanks lads, vaux 8 quid filter here I come

  5. #5
    Regular Member dawasdave's Avatar
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    Quote Originally Posted by shamus5178 View Post
    KK, thanks lads, vaux 8 quid filter here I come

    Yep and just throw it away and get a new one every 6k

  6. #6
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    just to ask chaps,just bought a k&n for my 2006 1.9td/150,have i wasted my hard earnt money,as i was led to believe it helps the motor run smoother and more responseive ?

  7. #7
    Regular Member Maverick's Avatar
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    Yes you have wasted your hard earned money. I bought a K&N for mine, what a waste of time as it makes no difference what so ever.

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    The free air box mod probably makes more difference, and I didn't like the fact that there was clear daylight showing through parts of my K&N when I held it up to the light! Also, if you over oil them, they can ruin your MAF sensor in no time at all. Something else that is now collecting dust in a box on a shelf in the garage. LOL

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    Regular Member Trist78's Avatar
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    I have put it on mine a while back and I dont think theres a big gain as such but there is a difference on the response when accelerate.

    Also it works better when you do the airbox mod

  10. #10
    Admin & Merchandise Manager bigmac's Avatar
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    Vehicle : insignia

    Trim : irmscher

    Engine : 2.0 cdti

    Year : 2009

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    Well its a up from me as its made mine more responsive below 2k

    Irmscher Insignia CDTI 130

    MOD'S...Irmscher front spoiler, Irmscher mats, Irmscher door pins, Irmscher rear spoiler, Irmscher grille, Irmscher skirt & exhausts,Irmscher Roof spoiler MOD'S TO COME..Side skirts,Wheels

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