David. wrote: The best Google can come up with is that there were some new MOT laws introduced in 2018.
"There are still no emissions tests carried out on bikes, besides the noise levels, which are purely down to the tester’s discretion. As long as there’s no mark saying ‘race use only’ or ‘not for road use’, an aftermarket exhaust could pass, though a current reason for rejection is if the type of noise emitted is clearly in excess of that which would be produced by a similar machine fitted with a standard silencer in average condition."
The laws on emissions are getting stricter
This only applies to diesel cars, so bikers don’t need to worry. If you do own a diesel car, you need to be aware that if a DPF (diesel particulate filter) is fitted, you’ll receive a major fault (a fail) if your MoT tester finds evidence that the DPF has been tampered with, or if smoke of any colour is coming from the exhaust.
Could this be where the don't tamper with the exhaust system comes from.
All I was stating was that (allegedly - assuming my mate the mechanic isn't also bullshitting) that his MOT software has been updated to take into account motorcycle emissions testing. Now when this will be implemented I do not know, or even if it will be. But seems reasonable that if they are updating the software and issuing probes that it could be on the cards. You are not supposed to remove cats or tamper with the exhaust now! Again, whether this will be checked at MOT I do not know, although currently any aftermarket exhaust should have the approved for road sticker on it, not that many check. How a tester would know if the flap was stuck or not there I have no idea or if they would bother. This isn't the Spanish Inquisition, I was just stating what I had read and heard. But to have some prat on an internet forum just arbitrarily start to slag me off, frankly pisses me off. We normally have a good group on here, we do have some disagreements occasionally, but in the main we all respect each other, that is what makes this forum different from the other forums the numpties use. But sh1t happens sometimes. I'm not going to bother anymore responding to him or I am just lowering myself to his level.