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  1. BBC SPONSOR Bass Cat Boats's Avatar
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    #21
    One produces more ponies in the various ranges.

  2. Member fishnfireman's Avatar
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    #22
    Quote Originally Posted by Bass Cat Boats View Post
    One produces more ponies in the various ranges.
    Interesting!! And good to know that I at least got something more than a set of decals, hard mounts and a sportsmaster.

  3. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #23
    The different part numbers identify the different calibration contained in the PCM.

    Interestingly enough... some of these engines being discussed don't even list part numbers for the PCM, so that means there's a lot of speculation involved.


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  4. Member
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    #24
    Quote Originally Posted by jphillips2546 View Post
    The ecu's are different part numbers. (250 Pro XS vs R) What does that actually mean? No idea other than speculation.
    EXACTLY!
    But as part numbers are crossed, the tune is the difference.

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