Nur Spec-R MOT fail?
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Nur Spec-R MOT fail?
Hi,
My '02 STI Prodrive failed its MOT the other day due to excessive exhaust emmissions As far as I know the car has a Hayward & Scott 2 piece up-pipe and de-cat and a full Nur Spec-R system. The MOT guy said the whole lot will need to be replaced because there's nowhere to put a cat. Is there anything else I can do? as a full exhaust from the turbo back seems a bit extreme, not to mention expensive.
Thanks,
Karen
My '02 STI Prodrive failed its MOT the other day due to excessive exhaust emmissions As far as I know the car has a Hayward & Scott 2 piece up-pipe and de-cat and a full Nur Spec-R system. The MOT guy said the whole lot will need to be replaced because there's nowhere to put a cat. Is there anything else I can do? as a full exhaust from the turbo back seems a bit extreme, not to mention expensive.
Thanks,
Karen
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The Nur Spec R is a cat back system so unless someone has modded it you should be able to just replace the downpipe for one with a cat in it. Depend on whether you want a normal or a sports cat, but remember if you do fit a cat you'll need a remap to account for the additional restrictions in the system. You might get away with a good sports cat and no remap, but personally I wouldn't chance it.
Plan B, ask in the Scottish section for anyone who no's a decat friendly MOT tester
Plan B, ask in the Scottish section for anyone who no's a decat friendly MOT tester
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I just need something to get the car through its MOT with acceptable emissions, then everything that's on it now will be going straight back once I have the certificate. Will the car need remapped just for that? And will any catted downpipe go on a Nur Spec-R, as long as it's not been modded?
Thanks for the replies
Thanks for the replies
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Drive it off-boost and you'll have no problems without a remap. As long as the Nur Spec is standard any downpipe will do, but some will be one piece and some 2-piece. Just avoid classic and JDM downpipes as they are shorter
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Thanks everybody
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"oh my headlights dont work"
tester "dont worry ill just miss that bit out"
i think your car has to pass EVERY section of the test, agreed you could probably test another cars gasses but how many people really know someone who would do this???
i cant imagine turning up to a mot tester you dont know and asking him to do this as its illegal,
maybe if you know the tester but otherwise i'd imagine its a near impossible task.
Last edited by tubbytommy; 04 September 2011 at 08:00 PM.
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They do indeed exist.Its always handy knowing one, as cant stand silly things like blown bulbs and worn bushes that cause a fail, a good mot tester will always bend the rules if its not putting lives at risk it helps guys like us and keeps business for the garage in question.
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They do indeed exist.Its always handy knowing one, as cant stand silly things like blown bulbs and worn bushes that cause a fail, a good mot tester will always bend the rules if its not putting lives at risk it helps guys like us and keeps business for the garage in question.
#17
im no expert on this matter but having watched my car being mot they simply cant just miss parts out, say
"oh my headlights dont work"
tester "dont worry ill just miss that bit out"
i think your car has to pass EVERY section of the test, agreed you could probably test another cars gasses but how many people really know someone who would do this???
i cant imagine turning up to a mot tester you dont know and asking him to do this as its illegal,
"oh my headlights dont work"
tester "dont worry ill just miss that bit out"
i think your car has to pass EVERY section of the test, agreed you could probably test another cars gasses but how many people really know someone who would do this???
i cant imagine turning up to a mot tester you dont know and asking him to do this as its illegal,
#18
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I`m due an MOT soon but as my V5 does not list an emmision`s target with it being an import that should be fun, Saying that he passed my last scoob for 4 years so i should`nt have a problem, Just got the same advisory for 4 years......Noisy Exhaust, lol.
You can also change the model of the car on the testing machine to get different result, pass/fail as some have a higher co2 output than others
You can also change the model of the car on the testing machine to get different result, pass/fail as some have a higher co2 output than others
Last edited by The Pink Ninja; 04 September 2011 at 08:05 PM.
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I`m due an MOT soon but as my V5 does not list an emmision`s target with it being an import that should be fun, Saying that he passed my last scoob for 4 years so i should`nt have a problem, Just got the same advisory for 4 years......Noisy Exhaust, lol.
You can also change the model of the car on the testing machine to get different result, pass/fail as some have a higher co2 output than others
You can also change the model of the car on the testing machine to get different result, pass/fail as some have a higher co2 output than others
we only check carbon monoxide,hydrocarbons and lambda on a cat test
,co2 reading is shown on the analyser but dont matter what it is ,our machine checks the level of co2 initially to ensure the probe is collecting gases and wont display until 9%.
#24
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hi incase you are worried the co2 category on the v5 is for (carbon dioxide)
we only check carbon monoxide,hydrocarbons and lambda on a cat test
,co2 reading is shown on the analyser but dont matter what it is ,our machine checks the level of co2 initially to ensure the probe is collecting gases and wont display until 9%.
we only check carbon monoxide,hydrocarbons and lambda on a cat test
,co2 reading is shown on the analyser but dont matter what it is ,our machine checks the level of co2 initially to ensure the probe is collecting gases and wont display until 9%.
My car does not exist as far as i know on the UK Mot data base being a Spec-C so i was curious as to what would make it pass/fail seeing as though there are no targets for the model as my V5 states
Make= Subaru
Type=
Varient=
Model=
CO2=
All the above are blank and this is a recent V5 that does not differ from the last one apart from a number plate change
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Gaz, they revert to the old table for pre 95 cars, just as an example mine passed with amazingly low levels of CO2, something like .08% on fast idle, well below the limit (note the nice sticker under your bonnet, near side with the CO2 emissions on it
Tony
Tony
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I have no idea Tony. I've only had the car a year and everything was already done. I was told the decat was legal and nothing to worry about. Don't know who to trust these days
#29
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Over here in NI, MOTs are not done by local garages but national centres with multiple test lanes.
Emissions was an interesting one for me this year, I have a 3" Cobra turbo back system with the two main cats removed.
Uppipe still has the small cat in the uppipe.
The CO emissions were 0.0040% max permissible is 3.5% HC showed as 180ppm max permissible 1200 so passed easily, now there is still a small cat on the uppipe but the gases are moving through it at idle fairly quickly so cant see removing it as being a problem, plus remap time will probably sort it even more so. Did you happen to get a printout with the emissions listed?
Emissions was an interesting one for me this year, I have a 3" Cobra turbo back system with the two main cats removed.
Uppipe still has the small cat in the uppipe.
The CO emissions were 0.0040% max permissible is 3.5% HC showed as 180ppm max permissible 1200 so passed easily, now there is still a small cat on the uppipe but the gases are moving through it at idle fairly quickly so cant see removing it as being a problem, plus remap time will probably sort it even more so. Did you happen to get a printout with the emissions listed?
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dont worry so much, as people have said there are friendly MOT stations out there, ask around as suggested in the scottish section and ask to be PMd with the details. as for being legal (or road legal) if you did get a pull you would need to be really unlucky to get collared with a decat, and if you did, you would more than likely be issued with one of those tickets telling you to get it sorted and passed by an MOT station and then return the form to the police within 14 days or pay a £60 fine! i had one of these once for the wrong font on the reg. i sellotaped the original plates over the show ones, the bloke came out the garage, signed me off, i drove around the corner and took them off again. its not an ideal situation you have found yourself in but not one to lose sleep over