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Batmanman

Member

Registered: 19th Jun 07
User status: Offline

26th Apr 08 at 17:42

Hi Peeps.
I have been thinking of De-catting my exhaust system for a little while now, but have always been worried about it getting through an mot after. I just had my car MOT'd and the current CO2 emissions are 0.01% (i dunno what the average is) but im wondering if taking the center box out would make it fail an MOT on emissions.

Correct me if anything i have said here is incorrect.. i dont know a massive amount about all this gubbins (hense me asking).

Cheers.
Rich.

Scotty C

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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
User status: Offline

26th Apr 08 at 17:43

It wont fail if you remove the centre section.

Batmanman

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Registered: 19th Jun 07
User status: Offline

26th Apr 08 at 17:46

Awesome. Cheers monster

CorsAsh

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Registered: 19th Apr 02
Location: Munich
User status: Offline

26th Apr 08 at 17:58

Removing the centre section isn't decatting, and you won't fail an MOT for doing it.

If you remove the catalytic converter (which is decatting) you'll fail the MOT for not having one as it was a legal requirement on cars produced after 1995 if I remember rightly.

Batmanman

Member

Registered: 19th Jun 07
User status: Offline

26th Apr 08 at 18:01

ahh, ok. as i said, sorry if anything was incorrect. well, i meant removing the center pipe, not decatting, i thought it was the same thing

my car is L reg, 94, so does that mean i dont need one?

Scotty C

Member

Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
User status: Offline

26th Apr 08 at 18:04

All a centre section does is silcenes the exhaust. Nothing to do with emissions.

So, yes, you don't need one.

timmee

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Registered: 28th Jul 06
Location: watton, norfolk
User status: Offline

26th Apr 08 at 19:35

quote:
Originally posted by CorsAsh
Removing the centre section isn't decatting, and you won't fail an MOT for doing it.

If you remove the catalytic converter (which is decatting) you'll fail the MOT for not having one as it was a legal requirement on cars produced after 1995 if I remember rightly. [/quote

can't fail for not having 1 fitted can only fail if the emissions are 2 high

ainsley_brader

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Registered: 24th Mar 02
Location: Tattershall, Lincolnshire
User status: Offline

27th Apr 08 at 08:37

think it was 92 not 95

AdamF

Premium Member

Registered: 24th Apr 02
Location: Bexhill, East Sussex
User status: Offline

27th Apr 08 at 08:45

it was 1992 but there was a loop hole in the system and not everything had to meet the limits

everything after 01/08/1995 had to meet the current limits

CorsAsh

Member

Registered: 19th Apr 02
Location: Munich
User status: Offline

27th Apr 08 at 10:49

quote:
Originally posted by timmee

quote:
Originally posted by CorsAsh
Removing the centre section isn't decatting, and you won't fail an MOT for doing it.

If you remove the catalytic converter (which is decatting) you'll fail the MOT for not having one as it was a legal requirement on cars produced after 1995 if I remember rightly.

can't fail for not having 1 fitted can only fail if the emissions are 2 high

I'm fairly sure if the car was made after the new legislation on cats came in, it has to be present, or the emissions are irrelevant.

swedge

Member

Registered: 3rd Sep 07
Location: Hawick,scotland drives: 1.4 sri corsa
User status: Offline

27th Apr 08 at 13:48

i have a 93 corsa could i remove the cat and pass?

Huffski

Member

Registered: 23rd Mar 08
Location: Linconlshire-Horncastle
User status: Offline

27th Apr 08 at 16:22

wat my mate did on his fezza zetec s was get an inline astra cat after his mot smash the interns outs and bolt it onto his flange so if the cops piull him over it look like hes got one in

richc

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Registered: 24th Mar 07
Location: Ilkeston
User status: Offline

27th Apr 08 at 16:23

quote:
Originally posted by Huffski
wat my mate did on his fezza zetec s was get an inline astra cat after his mot smash the interns outs and bolt it onto his flange so if the cops piull him over it look like hes got one in

Since when have you been pulled and they have said - 'excuse me sir, can i see your cat'

timmee

Member

Registered: 28th Jul 06
Location: watton, norfolk
User status: Offline

27th Apr 08 at 18:26

quote:
Originally posted by CorsAsh

quote:
Originally posted by timmee

quote:
Originally posted by CorsAsh
Removing the centre section isn't decatting, and you won't fail an MOT for doing it.

If you remove the catalytic converter (which is decatting) you'll fail the MOT for not having one as it was a legal requirement on cars produced after 1995 if I remember rightly.

can't fail for not having 1 fitted can only fail if the emissions are 2 high

I'm fairly sure if the car was made after the new legislation on cats came in, it has to be present, or the emissions are irrelevant.

nope there is nothing in the mot tester guide about the fitment of a cat emission within the limits pass if not fail it's as easy as that

CorsAsh

Member

Registered: 19th Apr 02
Location: Munich
User status: Offline

27th Apr 08 at 18:56

Seems you're right from what I've read.

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