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  1. #1
    Chine Walker
    Join Date
    Nov 2006
    Posts
    598

    Can someoene measure the exhaust outlet on their GPR??

    I need the diameter of the cutout in the hull.

    Thank you,
    jp


  2. #2
    philip_gpr's Avatar
    Join Date
    Dec 2005
    Location
    Canada
    Posts
    2,724
    +1
    3
    the hull opening is 83 mm

  3. #3
    I always wanted an adjustable block off plate on the outlet. Think of how easy you could fine tune the back pressure for top end rpm's .

  4. #4
    83mm D plates!!

  5. #5
    Ramps's Avatar
    Join Date
    Jan 2008
    Location
    Myakka, FL
    Posts
    649
    +1
    28

    Thumbs up Awesome!!

    This sounds like a great idea..Has anyone thought of this before??? What results could we see????

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