I have a Sigma 125 which is fitted with a decat pipe (sensor screwed to the decat).
I will need to get an mot as its not been in use since it was registered.
The cat came with the car in a box, will I have to put the cat on to pass?
2012 order but got its first reg jan of 2014
You will need to fit the cat to pass the emissions test.
Depends on how bothered your MOT tester is...
The cat will be required to pass the emissions test. However some specialist MOT places have been known to forget to insert the test pipe in the exhaust at the critical point - or indeed insert it into the wrong car's exhaust.
Just for awareness.....
Correct me if I'm wrong but I think our cars tax class comes under vans and light goods, so does that mean we could be fined the £2500 for having a de-cat?
Just put it back. What's the problem?
Democratic dissent is not disloyalty, it is a positive civic duty
#7 Just put it back. What's the problem?
Well, a significant problem for owners of Duratecs with roller-barrels is potential cat damage due to unburnt fuel on over-run.
Apart from that, I'd agree with you.
its not so much the over run more the full power,, when the excess fuel 'warms the cat' to the point they will easily glow cherry red and on side exit exhausts will have blue tail flames under load, just watch the 620's on you tube, repeated exposure to this will melt the core.
closed loop conditions are normally up to circa 3k and 50-60% throttle after that your open loop..... so unless you replace yours with a race cat which offers less restriction however these may not help you meet the MOT requirement in terms of emissions, having just bought one I know this can be the case..... so I had to buy another !
#7 its not a "problem" its a question.
The cat in the box appears unused. No sign of clamps or insertion marks.
The car came as is, never used since passing its post build test.
I see other Caterhams with no secondary cat.
The cars are taxed as PLG not under the co2 measurement system.
Hence the question.
I can't remember how many cars and bikes I have owned, not sure if that is a good or a bad thing
To answer your original question ("...will I have to put the cat on to pass?"), the short answer is Yes (always assuming that the tester follows DVSA's prescribed MOT procedure).
Presumably the car would have been IVA'd prior to its 2014 registration? If so, it would have needed a cat to pass. Perhaps the owner simply replaced it with a decat pipe straight after?
If the car hasn't been used since 2014, I take it the planned MOT is its first?