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Anyone with a 200 cell Sports CAT failed their MOT?

wanton Jul 1, 2013

  1. wanton

    wanton Member

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    Hi All,
    I am thinking of getting a turbo back system with a 200 Cell CAT. The garage I have been speaking to suggests that although very rare there is a chance a 200 cell CAT may not pass an MOT. So as the post suggests anyone failed their MOT with a sports CAT?



    Cheers.
     
    Last edited: Jul 1, 2013
  2. Reload

    Reload Bird is the Word!

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    First I've heard of it mate, mine passed okay
     
  3. Imteyaz

    Imteyaz 6th Gear

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    I had a Millteck 200 cell Cat on my A3 1.8T (8L) for almost 3 years, even with 130k miles there was never a problem when it went for its emissions test.

    Sounds like scare-mongering if you ask me. You may run into issues if you have a 100cell Cat I've been told, perhaps that is what they were referring to?
     
  4. hades-

    hades- Well-Known Member VCDS Map User

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    not scare mongering at all
    some will fail
    the 200 on out ST 3 failed 2 weeks ago
    but very rare
     
  5. wanton

    wanton Member

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    How long was it on the car for before it failed bez?
     
  6. hades-

    hades- Well-Known Member VCDS Map User

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    oct 2012
    failed june 17th
     
  7. wanton

    wanton Member

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    Failed after 7 months? That's awful. Cant you take it up with the guy who supplied the CAT? The system I am looking at has the CAT guaranteed for 5 years. The rest of the pipe work is guaranteed for life.
     
  8. hades-

    hades- Well-Known Member VCDS Map User

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    nope as said some fail the mot some dont risk you take
     
  9. coreythorny

    coreythorny Active Member

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    Take the car before they do the emissions test, tell to get the test ready for when you return, take the car for a true blast and ensure it gets red hot (the CAT).

    I guarentee you will not fail like this unless the CAT has failed itself.
     
  10. hades-

    hades- Well-Known Member VCDS Map User

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    thats what i did
     
  11. S3Alex

    S3Alex Rarely neutral Team Ibis TFSI Owners Group Gold Supporter Audi S3 DSG

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    I ran a Milltek sports cat system on mine with no MOT issues for a couple of years.

    As has been said though,failures do occasionally occur,but then cat failures occur in any case,sports cat or not.
     
  12. manikm

    manikm Member

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    Mines just passed. Cat back and 200 cell sports cat. 1st attempt failed. 2nd attempt passed. They had to get it hot they said. And if gone for a long cruise before dropping it off

    Sent from my SM-G935F using Tapatalk
     
  13. S.

    S. Well-Known Member Team Ibis TFSI Owners Group Audi S3 quattro Manual

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    You need to get it hot. But never had issues with mine.
     
  14. curlo

    curlo Active Member

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    Nice thread resurrection there. :flushed:
     
    leshkin and S. like this.
  15. prt57

    prt57 Active Member

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    I even had a bit of trouble last year with a 300 cell cat. Then it was warmed up thoroughly and retested ok.
     
    S. likes this.

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