v8hotrodboy
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I just did mine. Look for the post that says look what I made today and theres a pic of my center pipe.
decat pipe v8
- Thread starter leesp38v8
- Start date
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I just did mine. Look for the post that says look what I made today and theres a pic of my center pipe.
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A bone of contention with me also. I thought they were PFs. But the item fitted to the P38 diesel does appear to be a Cat not a PF. As a Cat on a diesel will never get hot enough to do anything driving around in built up areas, it is a bit of a stupid accessory. Will have to look into this a bit more.
6704nathan
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personally i think the problem lies in incorrect use of terminology, it is not a cat it is a dpf if people refered to a diesel particulate filter as a dpf and not as a cat i doubt there would be the confusion on the matter.
when it comes to test time i think problems will happen with diesels not having a dpf due to poor mot testers lacking knowledge of the difference between a cat and a dpf but it is quite clearly written in the manual to only check for a cat if it has a full emissions test which a diesel does not iam sure if vosa wanted a diesel failed for not having a dpf it would state to check for one.
which is why i say if your diesel fails for not having a cat challenge the garage and appeal!
knowledge is power!
when it comes to test time i think problems will happen with diesels not having a dpf due to poor mot testers lacking knowledge of the difference between a cat and a dpf but it is quite clearly written in the manual to only check for a cat if it has a full emissions test which a diesel does not iam sure if vosa wanted a diesel failed for not having a dpf it would state to check for one.
which is why i say if your diesel fails for not having a cat challenge the garage and appeal!
knowledge is power!
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Sorry but that is not so. There is no particle filter made for Land rover P38 diesels, only catalytic convertors. I have just looked through suppliers. They are definatly fitted with a two way cat. Not a particle filter.
6704nathan
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i stand corrected! but i still reckon if you challenge the garage that is not a cat as its a diesel you will get away with it.
also as it does not require a full emissions check that tester does not have to check for the presence of a cat so shouldnt fail.
also as it does not require a full emissions check that tester does not have to check for the presence of a cat so shouldnt fail.
sible88
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I have tubular manifolds and Y piece in stainless if intrested £175
For de-cat.
For de-cat.
kooky_guy
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I'm in the same boat with my cats - previous owner emptied them and they sound crap.
I was told that this year the mot has changed for lpg and it will be tested on petrol and lpg so you will need working cats.
Decat pipes cost as much as cats though so you might as well replace them.
I was told that this year the mot has changed for lpg and it will be tested on petrol and lpg so you will need working cats.
Decat pipes cost as much as cats though so you might as well replace them.
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Emissions test is still done on fuel vehicle is running on when presented for test. If that is LPG that is what it is tested on.
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As i said earlier that is open to interpretation. In the checking column it says, "For vehicles that qualify for full emissions test check that a cat is present". A specific instruction for petrol vehicles. In reasons for rejection column it says, "Fail if a cat is not present when one was fitted as standard". That part is not specific to petrol or diesel engines, so could be regarded as covering all vehicles. Maybe it needs to be clarified. One was fitted as standard to all diesel P38s.
leesp38v8
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i still have not got an answer but dus any one know the bore size of a std exhaust on a v8 p38 4.0, i think its 2 and a half ???????
Last edited:
996TURBO
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63mm exactly
leesp38v8
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thanks mate63mm exactly
