Originally Posted by parapaul
It shouldn't do - cat removal is a fail, because it interferes with the emissions on a petrol engine. From the MOT manual Section 7.4 on the VOSA website:
A well maintained engine shouldn't produce anywhere near that quanity of smoke.
jeez, that is so daft that a cat removal is a fail, but a DPF isn't.
DPF stops all those dangerous (to people's lungs) small particles getting released... shame