Quote:
Originally Posted by bgkast
The M pump is only of value if you have it tweaked by Myna in Finland and install it on a modified turbo engine, otherwise it is just another injection pump.
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The M-Pump supposedly makes the engine run better than the MW-pump. Might be something to do with the cam profile or its governor control.
Stricter emissions may be a reason why the US got the MW and the world got the M.