They were telling me that the uses vehicle specific targets but if it doesn't pass they can use a 'general' target. How true this is I don't know as I also saw how they got mine through this year [emoji51]
I had a sports cat put on as a, it gets round the remap issue and b, part of the m.o.t is a visual one so unless your on good terms with them they'll fail it for not even seeing it in place