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Duratec 2.3L/Mazdaís MZR 2.3L

04-22-2007, 08:21 AM
Does anyone know the difference between SEFI and MPFI? I was trying to compare the mazda6 MZR engine and fusion Duratec engine and the only difference I can see is the MPFI (really can't find any specs on the two:banghead: ). Iím sure there are other differences but Iím at the point were I might try to swap parts (aftermarket) to see if any of it will work.

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