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Downpipe options and MOT on A3 2.0 TFSI

Discussion in 'A3/S3/Sportback (8P Chassis)' started by downtothebone, Sep 20, 2012.

  1. downtothebone

    downtothebone Active Member

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    Currently looking into swapping out the exhaust downpipe and keeping everything else stock. I've been looking at the APR unit and wanted to know if it is MOT friendly? Its a bit 'pricey' at £694 so if anyone has an alternative suggestion please let me know. Main criteria is car must pass MOT and I don't want a boom box (...I'll leave that to the wannabe gangstas !!!).

    Thx.
     
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  3. nalsport

    nalsport New Member

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    Hi there
    We do the downpipe with a choice of 100 cell or 200 cell Motorsports cats in 76mm and is MOT friendly.
    Unit is supplied with the connecting pipe to allow it to join the stock system - sounds awesome.
    Price to the forum members is £525.00 inc vat

    [​IMG]

    [​IMG]

    Cheers
    Nige
    BCS Automotive
     
  4. downtothebone

    downtothebone Active Member

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    I'll be in touch shortly ...

    Thx.
     
  5. Evan@APR

    Evan@APR Site Sponsor
    Site Sponsor

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    Hey Nige

    Very interesting claim about a 200 cell cat passing MOT. What type of catalyst do you use in yours? As far as I'm aware anything 400 or less can be trouble when it comes to emissions testing.

    Thanks!

    Evan
     
  6. Artimus

    Artimus Shortback

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    Interesting ...subscribed. [​IMG]
     
  7. steviedee

    steviedee Member

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    So are you just as well fitting a straight pipe instead of a sports cat??? what is the point in a sports cat if it will not pass an MOT?

    I`m just curious!
     
  8. Evan@APR

    Evan@APR Site Sponsor
    Site Sponsor

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    A sports cat fresh out of the box should meet the minimum MOT performance standards. Over time the chances of a sports cat passing decreases. Some people are successful using O2 spacers in conjunction with a sports cat to pull the oxygen sensors further out of the exhaust flow, therefore increasing the possibility of passing, but it's not guaranteed.
     
  9. downtothebone

    downtothebone Active Member

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    I decided on the BCS unit for my cabrio and its being fitted tomorrow along with ...
    H&R lowering springs
    Brembo HP2000 pads
    Autotech HPFP internals
    Superpro front control arm bushes
    Mobil 1 oil change
     
  10. Adamj

    Adamj Member

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    Quite interested in one of these down pipes. What's the quality like?
     
  11. nick9one1

    nick9one1 Member
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    spacing the rear O2 sensor stops the engine light from coming on by causing less emissions to flow through it. This makes the ecu think the cat is working correctly.

    I dont think this will help in an MOT situation as they use an independant emission tester that they sick up your pipe (ou-er!).
     
  12. S3Alex

    S3Alex Rarely neutral
    Audi S3

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    I never had any problems with the sports cat and downpipe on mine passing an MOT but its a Milltek and not APR.
     
  13. downtothebone

    downtothebone Active Member

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    I'm no expert on downpipe fabrication but the guys at AMD Woking were 'very impressed' with the build of the BCS downpipe ...
     

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