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  1. 09-11-2009, 04:16 PM #1
    Gamblerman02
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    2003 Mercury 200 EFI

    How are these motors a detuned 225,Is the difference in the heads or all in the ECU

    thanks



    Rick
    Gambler Outlaw/Merc 200 EFI
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  2. EuropeanAM
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    #2 09-12-2009, 06:58 AM

    Re: 2003 Mercury 200 EFI (Gamblerman02)

    Usually heads, ECU and cylinder porting (primary differences). Of course, gotta compare an "apple to an apple" here (need specific info on two specific engines to know the exact differences).



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