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  1. #1
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    2011 Merc 150 ProXS more HP

    What can be done if anything to a Merc 150 ProXS to get 15-25 more HP? Running a 2011 18.5' Nitro Z7 bass boat at 5600 wot.
    Thanks,

  2. #2
    Join Date
    Jul 2012
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    Lufkin, Texas
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    Welcome to SNF!

    Check with Simon Motorsports, they do custom tunes. Not sure how much gain to expext though. You’ll always gain more through setup than horsepower.

    Post some details on your setup and we can point you in the right direction. Jack plate, propshaft height, prop, etc. Also some pics of the rear of your boat so we can see where your transducers, etc are mounted. Sometimes they can cause performance issues...

    Also don’t forget to introduce yourself!
    Josh Peterson

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