Decatted and MOT
Author
Discussion

Hoover33

Original Poster:

5,993 posts

271 months

Sunday 20th March 2005
quotequote all
how does decatting fair with getting an MOT??????

woody

2,189 posts

313 months

Monday 21st March 2005
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Depends on the age of the car - if it is pre 92 (I think - although someone will correct me if I'm wrong) then cat's weren't mandatory so you can take them off.

Chris

daftlad

3,324 posts

270 months

Monday 21st March 2005
quotequote all
woody said:
Depends on the age of the car - if it is pre 92 (I think - although someone will correct me if I'm wrong) then cat's weren't mandatory so you can take them off.

Chris

Cats aren't mandetory for an MOT IIRC. Omission levels however, are less achivable in a car that was designed to run with cats if they are taken out.

There are reports in other forums that suggest re-mapping can acheive acceptable ommission levels.

Prof Higgins

11,706 posts

268 months

Monday 21st March 2005
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Fully removing all cats will pretty much result in failure at MOT time, my understanding is that you can remove the precats with no problems but main cat best left in place.

Edited to add - blimey were no responses when I started this!!!

>> Edited by Prof Higgins on Monday 21st March 08:48

Guillotine

5,516 posts

293 months

Monday 21st March 2005
quotequote all
Goes by engine No, not car age.

mine has a pre-cat 500 going in so doesn't need them.

as i understand it, you can't get a 500 to pass without the main cat. pre-cats didn't affect mine, still passed but main cat was no go.

BTW, i don't reckon you gain much by a full de-cat, except more noise. Engine does seem to rev freer if you have the right induction, but no more power.