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Model specific boards => Golf mk4 => Golf mk4 TDI => Topic started by: skcollob_ho on 26 April 2012, 09:58

Title: New exhaust...need a cat?
Post by: skcollob_ho on 26 April 2012, 09:58

I am thinking of replacing the exhaust system, and getting rid of the cat. Then a mate mentions that as of next year, cats are mandatory on diesels for their MOT's.

Is this true?

Title: Re: New exhaust...need a cat?
Post by: scarr89 on 26 April 2012, 10:18

Happened as of Jan the 1st THIS YEAR. Any car that left the factory with a CAT must have one for an MOT.

Title: Re: New exhaust...need a cat?
Post by: skcollob_ho on 26 April 2012, 10:30

Bugger.

The emissions test is still n/a right? So theoretically, I could take a cat apart, and weld it around a straight-through pipe?

Would I get away with this, or would i need to find a 'sympathetic' MOT station?

Title: Re: New exhaust...need a cat?
Post by: scarr89 on 26 April 2012, 10:38

You would have to find a nice MOT tester I guess. Saying that my CAT is hollowed out and passed an MOT sooo....That is a good idea about welding a cat around a straight pipe. Give it a go...if it fails fit a cat then replace after MOT.  :evil:

Title: Re: New exhaust...need a cat?
Post by: scarr89 on 26 April 2012, 10:39

Just give it a service before the MOT and stick some redex or similar through it to clean it up a bit and perhaps a little blast on the way to the MMOT  :grin: