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Thread: Cheapest ITB Trumpets Available

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    Default Cheapest ITB Trumpets Available

    As above, looking for 20v BT ITB stacks & money is tight, + it kills me to buy all this shit again.
    These dont come up 2nd hand.

    Been looking at T3 & the nice secection that Jubiride have available but the cost a small fortune landed.
    I suppose the real answer as to whats the cheapest would be the original plastic ones that come in the standard airbox

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    Not sure whether it was these exact ones, but i bought a full set which cost something like $70 AUD delivered on american ebay. Was a buy it now price as well!
    Last edited by Cerby86; 22nd April 2009 at 11:25 PM.
    Launceston = Home of the surprise sodomist!!

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    cheapest I have come across so far..Do you have the dimensions..what is the top and bottom internal diameter,
    Is it a direct bolt in to silvertop quads? or needs modifying.

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    u will need to slot the holes.

    the cheapest way to do it is make your own from frp.

    ive done it, its pretty easy.

    i used a bit of pvc pipe, heat the end on the stove and flared it out. cut the base plate off the stock one, put the tube with the flared end on it in that, bam, 2 piece plug.


    performance wise, they wouldnt be really amazing, but they cost fuck all and look cool.
    Last edited by slydar; 23rd April 2009 at 06:03 PM.
    78's

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    Mint any pics?

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    The actual port is a different shape, if that answers the question mate.

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    yeah if those are the same ones i got, you have to slot the holes a heap. and the trumpets are a smaller inner diameter than the throttle bodies by about 2mm. really doesn't seem to make much of a difference though, certainly not $150 worth of difference. Sometimes i wish mine were a bit prettier but then i realised that if i had pretty ones they would still be covered by the ugly filters
    Launceston = Home of the surprise sodomist!!

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    st is 45 at the opening, 43 at the butterfly.

    bt is 48 at the opening, 45 at the butterfly.

    so, really i would only run stacks meant for 45mm dcoe's on st's. i think you actually have to cut it so its an open slot, not a elongated hole.






    ive had a few hachis now.. lol.
    78's

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    wouldn't PVC melt at that temperature??

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    the stacks are made of fiber glass. you use pvc for the plug. and either way, no, it wouldnt melt i doubt, especially with the intake air being sucked through it.

    those stacks lasted at least 5 years and are still in one piece. gilly bought that engine off like the 3rd owner of the car since i had it.



    ive heard of people even using pvc pipe for not so temporary IC piping.
    78's

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