Removing a Cat converter and Stainless systems?

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valman
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Removing a Cat converter and Stainless systems?

Post by valman » 09 Feb 2010 07:00 pm

so, im going to remove the cat on my exhaust, to improve efficiency. as i cant afford to loose money on some bullhonkey environmental theory.... and while im at it. is there anywhere i can get complete stainless systems? has anyone made compelte stainless systems? or even non stainless? i hear it can add some power :twisted:
cheers in advance 340pw
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volvodspec
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Re: Removing a Cat converter and Stainless systems?

Post by volvodspec » 09 Feb 2010 07:09 pm

in holland we aren't allowed to remove the cat; that's MOT failure. a so called cat-replacer can be placed to fool the MOT man there is a cat under the car while it is a piece of hollow pipe instead.

i run stainless on my 340 turbo. lovely material to work with, with TIG you get really clean welds and after a few hard runs it gets a beautifull gold finish. it is quite expensive though, be prepared for high numbers if you start with it..

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trabitom99
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Re: Removing a Cat converter and Stainless systems?

Post by trabitom99 » 09 Feb 2010 07:14 pm

volvodspec wrote:in holland we aren't allowed to remove the cat; that's MOT failure. a so called cat-replacer can be placed to fool the MOT man there is a cat under the car while it is a piece of hollow pipe instead.
In Germany people do this (usually to old Mercs) once the 30 years "flat tax" threshold is reached and there is no financial gain from a cat any more. With newer cars it would be an MOT failure too, especially when the emissions are tested.

Cheers

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valman
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Re: Removing a Cat converter and Stainless systems?

Post by valman » 09 Feb 2010 07:19 pm

trabitom99 wrote:
volvodspec wrote:in holland we aren't allowed to remove the cat; that's MOT failure. a so called cat-replacer can be placed to fool the MOT man there is a cat under the car while it is a piece of hollow pipe instead.
In Germany people do this (usually to old Mercs) once the 30 years "flat tax" threshold is reached and there is no financial gain from a cat any more. With newer cars it would be an MOT failure too, especially when the emissions are tested.

Cheers

Tom
i looked it up online before hand and found out a car that is registered before 1st of august 91 doesnt need a cat. mine is h reg making it the latest possible registration date of 31st july. so it wont be a MOT fail :)
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volvodspec
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Re: Removing a Cat converter and Stainless systems?

Post by volvodspec » 09 Feb 2010 07:20 pm

i'll have to ad to my post that it is a failure for any car from '88 or younger; or a car wich has a catalyst code on the vehicle documents. on cars from 87 or older there is no problem to remove it.

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SteveP
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Re: Removing a Cat converter and Stainless systems?

Post by SteveP » 09 Feb 2010 07:45 pm

Yep you'll be fine to remove the cat on your car here int he UK when it's that old. :)
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macplaxton
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Re: Removing a Cat converter and Stainless systems?

Post by macplaxton » 09 Feb 2010 10:03 pm

valman wrote:i looked it up online before hand and found out a car that is registered before 1st of august 91 doesnt need a cat. mine is h reg making it the latest possible registration date of 31st july. so it wont be a MOT fail :)
Indeed, it's in the MOT tester's manual HERE
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Chris_C
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Re: Removing a Cat converter and Stainless systems?

Post by Chris_C » 09 Feb 2010 11:23 pm

There is a company in the VOC who do full stainless systems for 300's. Not ricer spec mind, AFAIK they are very close copies of the stock system in stainless
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valman
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Re: Removing a Cat converter and Stainless systems?

Post by valman » 10 Feb 2010 07:20 pm

BRETTY BOI wrote:I am having a stainless steel pipe fitted to my 340 on Friday because my old exhaust was getting me trouble with the police.
A man called Nev from F1-Moto does this kind pipe and his shop is near Brands Hatch if that helps.
thanks for the info mate :) you dont mind telling me the price? :wink: pm if you wish :D
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Re: Removing a Cat converter and Stainless systems?

Post by classicswede » 10 Feb 2010 09:39 pm

You do not have a cat fitted to pass an MOT in the UK. The only thing the car has to do for MOT is pass the emissions test.

Sport exhaust systems - I'm sure I'm the only person offering full systems for teh 300 series in stainless.
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Please email me directly on dai@classicswede.co.uk

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Re: Removing a Cat converter and Stainless systems?

Post by tommysb » 11 Feb 2010 11:36 am

valman wrote:i hear it can add some power :twisted:
If all other things in the system are changed to increase performance, and the exhaust is not, then it will restrict power.
Is probably closer to the truth!

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