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decat
#1
cat is on its way out has anyone decated a 2.0 HDI does it make a big difference. i know it will boost the bhp but it will also decrease the torque
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#2
Had mine done a while ago.

If there are differences then my Dyno (seat of the pants type) can't tell the difference. Turbo seems to spool a bit more freely, but can't be sure. Exhaust is slightly noisier and a bit deeper, but by no means intrusive or anti social. Went through the emissions check on the MOT no bother.

It will free up a couple of BHP, not convinced it will decrease the torque - but you will be hard pushed to tell the difference.
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#3
Have you any details of how you did it Coco? custom made part or of the shelf?

Steve
Somedays you're the pigeon, Somedays you're the statue.
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#4
(09-02-2012, 09:34 PM)steve valentine Wrote:  Have you any details of how you did it Coco? custom made part or of the shelf?

Steve

find your nearest powerflow centre they quoted me £50 for my berlingo. you can buy it off the shelf if yours is a 1.9D but not for the HDI.
(09-02-2012, 07:55 PM)Coco Wrote:  Had mine done a while ago.

If there are differences then my Dyno (seat of the pants type) can't tell the difference. Turbo seems to spool a bit more freely, but can't be sure. Exhaust is slightly noisier and a bit deeper, but by no means intrusive or anti social. Went through the emissions check on the MOT no bother.

It will free up a couple of BHP, not convinced it will decrease the torque - but you will be hard pushed to tell the difference.

you do loose torque cause you are reducing the back pressure
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#5
Local garage cut it out and welded in a piece of pipe they had. Neat job done and cost £50 - cost was covered by weighing in the cat for scrap !!

"you do loose torque cause you are reducing the back pressure " - As I said, I'm not convinced and I don't believe you can tell the difference. As with all these mods they are not up to much on their own, but the sum total is worth having.
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#6
What's the legal impliocations? I understood that a pre 2002 vehicle could lose the cat, but 2002 and later HAVE to have them for the MoT? Or, at least, that's what I was told by the exhaust man who sold me a new cat...
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#7
The legal requirement seems to be that if a CAT was a standard
fitting to the vehicle when it was manufactured then it should be present for
the MoT.
The Older I get the Better I Was!  Cool
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#8
(10-02-2012, 10:02 AM)zedhead Wrote:  What's the legal impliocations? I understood that a pre 2002 vehicle could lose the cat, but 2002 and later HAVE to have them for the MoT? Or, at least, that's what I was told by the exhaust man who sold me a new cat...

you dont need a cat on a diesel it will go straight through MOT
that guy has just said that to sell you a cat. if anyone tells you that you need one they are talking bullshit.
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#9
My understanding is that from some point this year they are tightening up on it and it will be required to be present? A friendly MOT tester who has a small garage told me this, the insides of the Cat cannot be proven to be there however so people are now hollowing them out to make sure it appears intact.
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#10
ive done it to my 2006 vectra cdti, i told my mot centre and they said its not a requirment on a diesel, it passes every year.
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