I just did a conversion on my 95' e320 coupe (M104), that's the only way to go ! Only thing that is happenning, is that when I reace car the shifting (taking it to high rpms in every gear), it seems that the car is getting fuel starved at the high end. COuld this have something to do with the fact that I have EFI with my M104? I never had that issue when I gunned it when it had the auto tranny in it.