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Decat pipe, engine warning light??

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by Craig Cull, Jan 28, 2012.

  1. Craig Cull

    Craig Cull Well-Known Member

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    Hi guys hope you can help??

    Installed my decat pipe to my A4 2.0tfsu quattro spec ed.
    After3 days of nice sound and a much more responsive drive,
    The engine warning light has come on. Is this something to worrie about?
    Is there a way round this?? Or shall I just put the cat bk on?
    As I don't want to damage anything. But it was a tw*t to fit lol
    And wanted to remap after I put a front mount on her.

    Any help would be brill :)
     
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  3. Paradox1

    Paradox1 Active Member

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    yeah that's normal mate,just get it mapped out.
     
  4. Craig Cull

    Craig Cull Well-Known Member

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    Spot on mate! Thanks for your help :)
     
  5. chrisa4quat

    chrisa4quat Active Member

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    This happened to mine. Got it mapped at work. What a difference
     
  6. hades-

    hades- Yorkshire & Humber Rep.
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    as above or get a lamba spacer
     
  7. chrisa4quat

    chrisa4quat Active Member

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    Comes up with cat below threshold of you plug in I bet
     
  8. Craig Cull

    Craig Cull Well-Known Member

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    thanks, is yours rediculously loud in comparison to standard? my mr's can here me coming from a mile away lol
     
  9. Craig Cull

    Craig Cull Well-Known Member

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    lamba spacer? were would i find one of them mate?
     
  10. chrisa4quat

    chrisa4quat Active Member

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    It's just how I want it. Not stupid but loud enough lol. Just get it mapped
     
  11. Marrow

    Marrow Member

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    ye were can u get a spacer from already stage one and want a decat but been putting it off due to cel and dont want the expense of another remap ?
     
  12. hades-

    hades- Yorkshire & Humber Rep.
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  13. Marrow

    Marrow Member

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    cheers mate
     
  14. Phantom_A4

    Phantom_A4 Member

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    Where did you guys get your decats from? - I did see one on ebay a few weeks ago for about £90? - Was thinking of just gutting my cat..... as I can't find them anymore.

    Any help is appreciated :)
     
  15. Marrow

    Marrow Member

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    Ye I have noiticed theres less for sale why is this?
    New MOT regs coming in possibly ?
     
  16. spider74

    spider74 Member

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    The most common place to get them is the USA, they call them a "test pipe" so try searching for that? I will have a spare up for sale soon and will post it up in the classifieds. The factory Cat is really restrictive, getting rid of it was like a second map! they vary in size, shape and price. A stainless 2.5" good quality one can cost as little as £70 but you need to ship it over the water.

    Also given the removal of the bung in the exhaust your stock pipes will be louder. I actually fitted a milltek which gave a quieter more subtle sound. each to there own though. I'm an old git, most of my friends loved the sound!
     
  17. hades-

    hades- Yorkshire & Humber Rep.
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    i dont get why you say you have to ship them from the usa ?
    theres pleany of places in the uk that can supply a de-cat pipe
     
  18. spider74

    spider74 Member

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    sorry mate , was just pointing to a source where I got mine, the posts above indicated that they were in short supply and i (perhaps wrongly) thought if they searched for test pipe instead of decat it might be helpful. I'd certainly never heard it called a test pipe in the uk before. Do you have any places in the UK that can supply them? Im after a 3" with a custom flange on it for a K04 project.
     
  19. hades-

    hades- Yorkshire & Humber Rep.
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    call pete or matt at exhaust uk
    mention me and they will sort you they have done quite a few for me
    tell them you need the flange from the S3 K04
     
  20. spider74

    spider74 Member

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    great thanks a lot, i'll give them a shout :)
     
  21. Marrow

    Marrow Member

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    how much do exhaust uk charge for fitting a decat/test pipe ? Would they supply and fit spacer to remove cel also ?
     
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  23. solaris

    solaris Member

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    This is what im using it goes from 4" to 3" so it matches the size of the hotside on the turbo. I told them I was using it with a K04 so they kindly included a K04 flange with the pipe. Its a bit pricy but the quality of the fabrication is second to none.

    R.A.I. Motorsport B7A4 2.0T Test Pipe
     
  24. hades-

    hades- Yorkshire & Humber Rep.
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    call them mention lee
    they dont supply the spacer get 1 from ebay and they will fit it for you
    ask for matt
     

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