Volvo 480 Club Europe

Anyone know what a B20FM engine is ? I need a new cat, checked the parts book and there are 2 different part nos, for B20F and B20FM. The list of engine types at the front of the book doesn't list a B20FM and I can't find any threads referring to it.

M = no cat. There is also a B18FTM listed.
Source: https://www.volvoforums.org.uk/archive/ ... 27221.html

Thanks brinkie, presumably then the cat for it is an empty shell ?

I guess it must have some sound muffling, otherwise you'll get a very chirpy exhaust note.