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Thread: Air Box Mod - Why?

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    Regular Member johnmac's Avatar
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    Default Air Box Mod - Why?

    HI everyone

    Looking for a bit of info on this.I carried out the mod a while back after reading about the benefits, however, a few months ago, I go my engine block replaced due to a mechanical failure (Vx paid!!!) but when I went to check the air filter the other day, I found that the small pipe is back in place !!! I can only assume (as it wasn't me!!) that Vx decided to replace the air box pipe when they were carrying out the work. So, have they done this as a mtter of course, or because it is something they feel is important.

    Just curious before i rip it back off
    Last edited by johnmac; 23rd October 2008 at 13:30.

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    Leave the pipe in the top part, only remove the baffle thing in the bottom of the airbox.

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    Regular Member parapaul's Avatar
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    Perhaps they replaced the whole airbox?

    The bottom trumpet is only there to conform with more stringent EU noise pollution regs, removing it allows air to flow more freely through the airbox but makes the engine marginally louder.

    I honestly can't imagine that the Vx spanner monkeys would even know the part was supposed to be there, let alone go to the trouble of replacing it....

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    Regular Member johnmac's Avatar
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    Sorry to sound a bit 'slow' lads. Is the bottom part you refer to below the panel filter? The part I am referring to,is the small pipe above the panel filter that feeds the air 'in' to the filter

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    Yes, the bit we're talking about is below the filter.

    The trumpet on the top of the box should stay, as it smooths airflow through the AFM.

    Note air comes in the bottom pipe below the filter, and out to the engine through the trumpet you're talking about in the top of the air box.

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    Is everyone who is replying to this thread certain they have the correct end of the stick regarding whether the OP's airbox directs air into the filter from above, or through it from below?

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    Regular Member johnmac's Avatar
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    Think I am lost here

    I'm sure when I looked at the How2,the pipe that was to be removed was the small pipe above the filter as this restricted flow into the filter and the reason for taking it off was to use the whole filter as opposed to a small area due to this pipe.The feed to this definitely comes from under the bonnet catch so surely this air goes 'into' the filter box?

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    I think the howto may be out of date, if you search the general consensus now is to leave the top pipe in and just remove the bottom baffle. It's the bottom baffle that stops the whole fiter being used, not the top pipe.

    Thomas1, if air is coming in at the top of the airbox, then it's likely his engine is turning backwards.

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    Regular Member johnmac's Avatar
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    Hmm

    I'm going to check.Maybe I'm talking a load of b0llocks here.It was that long ago.maybe I'm leading you all a merry dance.Apologies.When the ridiculous weather here subsides, I will check it out.

    John

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    Regular Member Matty H's Avatar
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    Quote Originally Posted by johnmac View Post
    HI everyone

    Looking for a bit of info on this.I carried out the mod a while back after reading about the benefits, however, a few months ago, I go my engine block replaced due to a mechanical failure (Vx paid!!!) but when I went to check the air filter the other day, I found that the small pipe is back in place !!! I can only assume (as it wasn't me!!) that Vx decided to replace the air box pipe when they were carrying out the work. So, have they done this as a mtter of course, or because it is something they feel is important.

    Just curious before i rip it back off
    To be quite honest the airbox mod is a waste of time. It doesn't make a jot of difference to performance. Any difference felt is a placebo effect in my opinion

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