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De-catting a Turbo?

Lowtimer

New member
Does anyone have experience of removing the catalyst on a roadgoing Turbo, and what are the pros and cons? Obviously on the face of it, it has scope for potential reduced back pressure, better spool-up, lower exhaust gas temperatures etc. It looks from what I can find out that it should not be an MOT / legal problem in terms of a 1990 car, but I am willing to be proved wrong...
 
My turbo was decatted from the factory and achieved lower CO emissions than my Ford Focus at MOT time! You should have no problems.
 

ORIGINAL: Lowtimer

Does anyone have experience of removing the catalyst on a roadgoing Turbo, and what are the pros and cons? Obviously on the face of it, it has scope for potential reduced back pressure, better spool-up, lower exhaust gas temperatures etc. It looks from what I can find out that it should not be an MOT / legal problem in terms of a 1990 car, but I am willing to be proved wrong...

Had my current Turbo decatted and no problems with emissions.
 
My car is also de-catted with no emission problems. I do have a question about the legality though.

I accidentally forwarded some information to the insurance company that referred to the fact the car had been de-catted. Does anyone know if this could come back to bite me if ever I might need to claim? The car has no problem getting legal MOT's but I know what insurance companies are like when it comes to paying out on claims!
 
It's when you *haven't* declared a mod to the insurance company that they can get difficult about paying out in the event of a claim.,If you have told them about it, then they have no beef. Declare everything.

I can't see them getting excited about a de-cat in the context of your other mods taking you to 403.7 bhp! It's just one in a long list, surely.
 
ORIGINAL: Lowtimer

It's when you *haven't* declared a mod to the insurance company that they can get difficult about paying out in the event of a claim.,If you have told them about it, then they have no beef. Declare everything.

I can't see them getting excited about a de-cat in the context of your other mods taking you to 403.7 bhp! It's just one in a long list, surely.

The list was so long I didn't even see it in there[;)]
 

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