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  1. #1

    Anyone have a GP1800 with Stage one Plus ?

    I've got a new GP1800 getting a Riva Stage one Plus. Would like to hear anyone has one or is thinking about getting one.
    Last edited by terryor; 04-16-2017 at 02:50 PM.


  2. #2
    outnumbered's Avatar
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    I had it installed. I've made a couple of changes.

  3. #3
    my buddy has one with Riva Stage 1+ parts....on flat calm water that thing is an absolute beast, launches out of the hole and pulls hard to 78ish mph

  4. #4
    Gus13letter's Avatar
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    Apr 2008
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    Check my thread out. http://www.greenhulk.net/forums/showthread.php?t=259721
    With few simple bolt on mods and gps bypass you can run 76 - 78 mph and be extremely reliable with warranty.


    If you decide to do a reflash and spin more rpm, You can run about 85 mph but I would suggest upgrading the supercharger shaft. http://www.greenhulk.net/forums/showthread.php?t=259746

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