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Author decat
Pop
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Registered: 8th May 03
Location: Reading
User status: Offline
12th Nov 08 at 20:13   View User's Profile U2U Member Reply With Quote
I've been having a search on google for a definative answer but am not having much luck.

Am I right in thinking it is legal to fit a decat pipe as long as your car still passes MOT emissions?
Ben G
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Registered: 12th Jan 07
Location: Essex
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12th Nov 08 at 20:16   View User's Profile U2U Member Reply With Quote
i believe so, but the likelyhood of that happening is quite small.
Jakey
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Registered: 4th Jun 07
Location: Sandbach
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12th Nov 08 at 20:18   View Garage View User's Profile U2U Member Reply With Quote
As Ben says. The chances of a de-cat passes an emissions test are slim to none.

I've got one on mine, come MOT time, whip it off, cat on. 15 minute job done.
Pop
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Registered: 8th May 03
Location: Reading
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12th Nov 08 at 20:18   View User's Profile U2U Member Reply With Quote
Even with some remapping?
Jakey
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Registered: 4th Jun 07
Location: Sandbach
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12th Nov 08 at 20:20   View Garage View User's Profile U2U Member Reply With Quote
Eh?
Stu
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Registered: 3rd May 00
Location: Madchester UK Drives: 2014 BMW M135i
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12th Nov 08 at 20:21   View User's Profile U2U Member Reply With Quote
My TVR passed with no cats (cores had been removed)! The MOT guy didnt even know it didnt have any!
Pop
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Registered: 8th May 03
Location: Reading
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12th Nov 08 at 20:22   View User's Profile U2U Member Reply With Quote
Well if you just stick one on it stands a good chance of not passing an MOT emissions test.

Can the ecu be mapped so that it brings the emissions to a legal level and still increase BHP?

[Edited on 12-11-2008 by Pop]
Jakey
Premium Member

Registered: 4th Jun 07
Location: Sandbach
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12th Nov 08 at 20:23   View Garage View User's Profile U2U Member Reply With Quote
I very much doubt it.
LukeD
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Registered: 23rd Jan 07
Location: Shropshire
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12th Nov 08 at 20:23   View User's Profile U2U Member Reply With Quote
Cars after 1992 legally need a CAT and are all manufactured with one

But as long as it passes the emmisons test within a mot, Im led to believe it will be fine?, But saying that, ive heard its very hard without one.

However it wouldnt be that hard to put one back on prior to MOT.
tom_simes
Show Staff
Organiser: South Wales
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Registered: 12th Jan 05
Location: Undy, Newport Drives: Skoda Octavia vRS estate
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12th Nov 08 at 20:25   View Garage View User's Profile U2U Member Reply With Quote
I told my MOT tester in the summer that my car had a decat, and I'd get it changed by the time I brought it in for the test.

He told me that as long as it passed the emmisions, he couldn't fail it - there is nothing specifically stating that it must have a cat to pass, just that it must meet the emmisions regulations.

 
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