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Thread: Iridium plugs

  
  1. #1
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    ShEp's Avatar
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    Iridium plugs

    Denso Iridiums

    Worth the extra money?

    Servicing the Gsi and got told to fit these

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    cossie 071 plugs ftw
    Astra T9 estate for sale, see my ebay link!

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    wer do i get them cossie plugs from and what makes them better?

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    ebay,i got mine from zippyracing....
    i don't think there any better its just there a quality plug at a low price,there for the ford cossie's and rs cvh engines so there are a shed load out there hence the low price....

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    how come they fit in lets then can someone post a link please

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    lee gsi's Avatar
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    Been seeing a few posts that the cossie ones have a shorter thread so sit further in the head and not in the optimum burning position.

    I would get iridium plugs if it was me with the correct fitting (Can be had for £30 delivered)
    The truth is always the truth even if you haven't realised it yet...

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    my cossie plugs cost £8 and have been fine, didnt offer any improvements over the ngk's but for the money you cant go wrong, and at £8 changing them every 6 months isnt going break the bank
    Astra T9 estate for sale, see my ebay link!

  8. #8
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    Have you compared them side by side?
    The truth is always the truth even if you haven't realised it yet...

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    totally agree with lee there the wrong plug for the zlet they dont sit in the right position therefore do not ignight the fuel corectly imo the swirl pattern is wrong in how it ignights and also as there shorter you have in theory lowered your compression ,took my cossie plugs out after 10 mins
    courtney stage 3 zafira,Mitsubishi evo geek mapped to 389 and 470 lb of torque

  10. #10
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    I have cossie plugs to, but im pretty sure the iridiums accelarated quicker but could be in me head lol

    Adam
    PHASE 3 ON A SWITCH WIV A GARRETT

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