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  1. 10-27-2008 07:17 AM #1
    ComfortRacing
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    Oct 03 2007
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    My Garage
    Audi A4 quattro
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    Richmond Va

    b6 1.8t exhaust question

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    what is the stock exhaust piping size for my car? is it 2.25?

    thanks in advance!
    2002 A4 Quattro 5-speed, KO4, SPP Ported/Polished Turbo Manifold, ATP test pipe, APR ko4 tuning, APR injectors, APR R1 DV, Front mount intercooler, H&R sport springs/Bilstein sport shocks, Neuspeed snubber mount K&N, Blackedout grille, Badgeless rear.

    To Do's:
    -APR Sport exhaust
    -Porsche seats, brakes and wheels
    -Recarro Baby seat =)
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  2. 10-27-2008 09:24 AM #2
    dougyfresh
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    2 pedals 1FG
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    connecticut

    Re: b6 1.8t exhaust question

    It might be less than 2.25" if I recall correctly but I do not know for sure.
    -Doug
    2002 A4 Avant EPL tuned 2.7T K04 6spd
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  3. 10-27-2008 10:15 AM #3
    CO AVANT
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    '03 B6 Avant, '15 B8 A4, '14 S8, '15 Duramax
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    Everywhere

    Re: b6 1.8t exhaust question

    DP is ~2 1/8". After the Y split it is ~1 3/4". Audi uses metric though...
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  4. 10-28-2008 01:57 PM #4
    dougyfresh
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    2 pedals 1FG
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    connecticut

    Re: b6 1.8t exhaust question

    /\
    Thanks Jordan. I knew it was small. Just didn't know the specs off the top of my head.
    -Doug
    2002 A4 Avant EPL tuned 2.7T K04 6spd
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  5. 11-02-2008 01:52 AM #5
    diagnosticator
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    Re: b6 1.8t exhaust question

    60mm OD down pipe.
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