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Thread: Maptun 3" down pipe and 100 cell

  1. #1
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    Default Maptun 3" down pipe and 100 cell

    Hi i was wondering if anyone had fitted a maptun 3" downpipe and 100 cell cat to there 2.0 turbos and if so what size pipeing diamiter you used on catback example 2.5/3.0 thankyou.

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    Full Member Caveman_nige's Avatar
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    two if us have fitted these so far.. although the DP is 3" it narrows at the section where it joins your existing system, so fitting a 2.5 inch exhaust will be fine..
    My old Signum, the animal; she now rests in pieces in several other members cars.. https://www.vectra-c.com/forum/garag...vehicle&id=200
    The wifes vec show car, started as a standard daily driver and ended up like this. https://www.vectra-c.com/forum/garag...vehicle&id=709



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    hi caveman i went to longlife (tony banks) in leeds and he said it was up to me but he said have the 3" dp fitted then center in 2.5 and the y piece and backboxes in 2" is this right i would think it all would be 2.5 thankyou

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    Full Member Caveman_nige's Avatar
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    2" at the back is too small in my books.. I would insist in 2.5 all the way back i think the factory system is 2.25"

    That guy is the pro though so get him to carefully explain his reasoning for going that narrow..
    My old Signum, the animal; she now rests in pieces in several other members cars.. https://www.vectra-c.com/forum/garag...vehicle&id=200
    The wifes vec show car, started as a standard daily driver and ended up like this. https://www.vectra-c.com/forum/garag...vehicle&id=709



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    thats what i thought have you got a center silancer fitted

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    Full Member Caveman_nige's Avatar
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    Z20NET Signums have a centre box, vectras don't. I have kept a centre box as my exhaust is loud enough for me with my 2.5" stainless quad rear system, no way do I want it any louder. It has a nice rumble but it can let out a scream when i plant the loud pedal into into the carpet.. If you need to turn your stereo up or raise you voices to talk in the car then your exhaust is too loud, but thats just my opinion as its what i want.. I need mine to maintain the persona of a tweaked family car, my daughter sleeps very well in the back with current set up..
    My old Signum, the animal; she now rests in pieces in several other members cars.. https://www.vectra-c.com/forum/garag...vehicle&id=200
    The wifes vec show car, started as a standard daily driver and ended up like this. https://www.vectra-c.com/forum/garag...vehicle&id=709



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    nice signum caveman

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