FasT09
Member
Registered: 4th Feb 05
Location: North Yorkshire
User status: Offline
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Sorry for sounding stupid but what does de cating involve? What does it do exactly. and it improves performance ye? But wont pass MOT's ??
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vx.racing
Member
Registered: 17th Feb 06
Location: Tyrone, Northern Ireland
User status: Offline
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Reduces the restriction on the escape of the exhaust gases so yes improves performance. You can replace the cat with a de-cat pipe, or hollow out the material inside the cat and weld it back up.
Well my car has no cat and it passed its MOT, its the emissions it needs to pass on, not the fact a cat is necessary.
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FasT09
Member
Registered: 4th Feb 05
Location: North Yorkshire
User status: Offline
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and do you notice a big difference in fuel consumption. How much does it cost to de cat
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LukeD
Member
Registered: 23rd Jan 07
Location: Shropshire
User status: Offline
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i found it pulled a little smoother, but seemed to run richer and smell of petrol, however it sounded too loud and "chavy" and i had alot of neighbours compain about me!! oops! So decided on a sports cat!
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vx.racing
Member
Registered: 17th Feb 06
Location: Tyrone, Northern Ireland
User status: Offline
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I wouln't say there was much difference in fuel consumption when i had a de-cat. De-cats cost different prices from different places and it will depend on whether you do the work yourself or take it to a garage.
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FasT09
Member
Registered: 4th Feb 05
Location: North Yorkshire
User status: Offline
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cool. how bout intake upgrade? does that improve performance and whats involved with that
[Edited on 19-07-2007 by FasT09]
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grogan
Member
Registered: 31st Jul 06
Location: County Durham
User status: Offline
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it involves chopping the cat out and replacing with a straight through pipe.
free's up a few more horseys by making the exhaust gases more freeflowing i think
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Beato
Member
Registered: 14th Sep 06
Location: Leven, Fife
User status: Offline
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More cold air give you more power. Making it easier for the air to get in increases performance as does allowing gases to exit easier.
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Rob B
Member
Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
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quote:
Originally posted by Beato
More cold air give you more power. Making it easier for the air to get in increases performance as does allowing gases to exit easier.
huh?
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Beato
Member
Registered: 14th Sep 06
Location: Leven, Fife
User status: Offline
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quote:
Originally posted by Rob B
quote:
Originally posted by Beato
More cold air give you more power. Making it easier for the air to get in increases performance as does allowing gases to exit easier.
huh?
quote:
Originally posted by FasT09
cool. how bout intake upgrade? does that improve performance and whats involved with that
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richc
Member
Registered: 24th Mar 07
Location: Ilkeston
User status: Offline
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quote:
Originally posted by FasT09
and do you notice a big difference in fuel consumption. How much does it cost to de cat
I noticed it aswell! Mine seems alot smoother on the rev range but alot thurstier!
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20valver
Banned
Registered: 14th Sep 08
User status: Offline
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you could try making your own de cat pipe
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Kevxx
Member
Registered: 14th May 08
Location: Forfar, Angus
User status: Offline
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quote:
Originally posted by 20valver
you could try making your own de cat pipe
you mean a bit of straight pipe? 
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Pete_vxl
Member
Registered: 24th Nov 06
Location: Lochgelly, Fife
User status: Offline
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i got a decat made acouple of months back and it was £50, petrol consumption is the same as when my car was totally standard and it is smoother but a de-cat on its own will not give you power, 2-3bhp at the most
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