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Cleaning an aftermarket sports cat.

Stuart B Oct 10, 2018

  1. Stuart B

    Stuart B Well-Known Member

    Hi, as part of my TT rebuild I am fitting my 3inch downpipe and 200cel sports cat. On my S3s last MOT they struggled to get it through the emissions test. So i am thinking about trying to clean the sports cat before fitting it.

    I have some 'cataclean' to try, has anyone tried something like this on a metal cat?
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  3. hendo#1

    hendo#1 Active Member

    De-cat and a friendly MOT tester is of course the correct answer.
  4. Prawn

    Prawn My other car is a MINI!!!!

    Sports cats rarely work to be honest.

    They still fail emissions tests, and they also restrict flow. Worst of both worlds!

    Decat, a few v bands, and let in a stock cat for MOT time once a year, or find a tester who likes beer, and give him some :laugh:

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