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Model specific boards => Golf mk3 => Topic started by: Foreveryoungaus16v on 28 August 2012, 19:23

Title: CAT Removal????
Post by: Foreveryoungaus16v on 28 August 2012, 19:23
Was thinking about removing my CAT off my 16v Gti.  Would this still pass MOT and would I see more

performance??
Title: Re: CAT Removal????
Post by: Screech16v on 28 August 2012, 19:30
It will fail mot and i doubt you would notice any difference tbh.
Title: Re: CAT Removal????
Post by: Foreveryoungaus16v on 28 August 2012, 19:31
Thanks mate
Title: Re: CAT Removal????
Post by: murraymint on 28 August 2012, 19:36
I wanted to do the same with my old 16v.....









(http://i1106.photobucket.com/albums/h364/murrayminf/44f27a91.jpg)
Title: Re: CAT Removal????
Post by: Foreveryoungaus16v on 28 August 2012, 19:40
Did the MOT thing stop u mate??  I did not get the momo wheel in the end
Title: Re: CAT Removal????
Post by: dom on 28 August 2012, 19:59
Did the MOT thing stop u mate??  I did not get the momo wheel in the end

(http://images.cheezburger.com/completestore/2010/3/25/129140177696990243.jpg)
Title: Re: CAT Removal????
Post by: murraymint on 28 August 2012, 20:02
Did the MOT thing stop u mate??  I did not get the momo wheel in the end

(http://images.cheezburger.com/completestore/2010/3/25/129140177696990243.jpg)

 :grin: :grin:

Did the MOT thing stop u mate?? I did not get the momo wheel in the end

Yh, nice one. Well going by the original price of the wheel you'll get your money back if you don't get on with it
Title: Re: CAT Removal????
Post by: tweed on 28 August 2012, 20:05
 :grin: :grin: :grin: :grin:
Title: Re: CAT Removal????
Post by: 67buggers on 28 August 2012, 21:35
I wanted to do the same with my old 16v.....



 :grin: lmfao








(http://i1106.photobucket.com/albums/h364/murrayminf/44f27a91.jpg)
Title: Re: CAT Removal????
Post by: Gavv8 on 28 August 2012, 21:36
I stared at that picture for a good ten minutes then almost spat my tea out.. :grin:
Title: Re: CAT Removal????
Post by: Foreveryoungaus16v on 29 August 2012, 19:22
After checking it all out its confirmed, it would fail MOT
Title: Re: CAT Removal????
Post by: mook25 on 07 September 2012, 12:57
It is possible to pass MOT with cat removed if you can keep the emissions within the required limits but with old cars like the mk3 it's highly unlikely. I removed the cat from my 8v and I noticed some gains but nothing massive, little sharper on the throttle, I'm simply going to put a cat pack on when MOT time comes. One of my mates bought a cat converter for his car and simply removed the innards effectively de-catting it and then when the MOT comes for him he'll just reassemble.
Title: Re: CAT Removal????
Post by: F17BAD on 07 September 2012, 13:20
No cat on mine 1993 registered and past last 2 mot

Last one was 3 week ago

That's with the Audi S3 engine
Title: Re: CAT Removal????
Post by: Wayne on 07 September 2012, 13:40
For the tiny gains involved it is better to leave it fitted.
Title: Re: CAT Removal????
Post by: Ess_Three on 07 September 2012, 14:43
No cat on mine 1993 registered and past last 2 mot

Last one was 3 week ago

That's with the Audi S3 engine

I'm amazed.
My S3 barely passed - and always needed 2-3 attempts - and that was WITH the 100 cell Milltek cats.
In the end, they were binned in favour of the 200 cell cats...and it was still marginal.
I must have had a crappy map on mine. It was a nightmare to get through.
Title: Re: CAT Removal????
Post by: F17BAD on 07 September 2012, 15:42
I must have a healthy engine or something
It's only done 45k anyhow

Did buy a 200 cell sport cat but it didnt arrive in time for by MOT date when I originally fitted the engine
To my suprise it passed easily

Was worried this year, but again passed with no issues

Not complaining at all. Less restrictions for the turbo :-)
Title: Re: CAT Removal????
Post by: technics100 on 07 September 2012, 15:52
My brother is a firm believer in a good de-cat, always made a difference.  He has his 1.8T LPG'd toledo done, Audi S6 2.2 5cyl (although sticks a cat in for mot using v-band clamps then removes after)

He's going to do my 16v, so will update if it's made any difference..
Title: Re: CAT Removal????
Post by: Ess_Three on 07 September 2012, 15:58
I must have a healthy engine or something
It's only done 45k anyhow


My S3 was bought new and it's first MOT it only had 13,000 miles on it!
The APR map must have been a dirty one.

I used to have a fight to get it through, as did my mate who bought it from me and had it 2-3 years - despite him going from a 100 cell to 200 cell cats.
Title: Re: CAT Removal????
Post by: Ess_Three on 07 September 2012, 16:01
My brother is a firm believer in a good de-cat, always made a difference. 

I tried it on mine...standard cat, de-cat and 100 cell cat - no gains to be seen.
This was dyno tested.

If one 16v doesn't give a gain...I'm surprised if another one does.