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audi s3 quattro downpipe

s3matthewd Sep 14, 2011

  1. s3matthewd

    s3matthewd Member

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    just wondred if anyone could help me my brothers going to make my downpipe and decat because his day job is as a fabricator,could anyone show me a picture or tell me if i need a 3 bolt flange or a 4 bolt one car is 2001 bam engine code many thanks matt
     
  2. Dani_B19

    Dani_B19 Audi-sports own special child.

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    Sure its 3 bolt mate.
     
  3. s3matthewd

    s3matthewd Member

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    just wondred if any one had a link for one dont want to order the wrong one also would 3 inch be overkill for turbo back or ok
     
    Last edited: Sep 14, 2011
  4. Dani_B19

    Dani_B19 Audi-sports own special child.

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  5. s3matthewd

    s3matthewd Member

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    thats brilliant cheers
     
  6. Dani_B19

    Dani_B19 Audi-sports own special child.

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    No worries mate.
     
  7. moredoor

    moredoor Member

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    3" seems the only way to go these days. Made a 3" downpipe for a mk4 which had a BAM k04 turbo and that worked really well.
     
  8. s3matthewd

    s3matthewd Member

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    ok then do i need a location for the second lamba sensor or can i leave it out i no i can get the light mapped out when i go stage 2 and also will the car go into limp mode with this mod or not thanks matt
     
  9. beachbuggy

    beachbuggy Well-Known Member

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    If your getting a custom made downpipe, weld in a O2 sensor bung anyway. Gives you the option to use or loose the 2nd O2 sensor. If it's not required then you just plug it, easily removable if you change your mind or sell the downpipe. Plus the parts just a few £'s!
     
  10. s3matthewd

    s3matthewd Member

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    also looking at the picture on google images above do you think that i would really need that flexi joint in the pipe work or could i get away with that thanks matt
     
  11. IrishDave

    IrishDave Active Member

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    Yes you will need the flex joint.
     

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