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  1. #1

    Moded water box 1,8 yamaha ?

    Hi my friends !

    someone has already moded its water box ( stock ) ? What are the gains ?

    because 300 or 400$ for racing water box is so hot ...

    you have photos or tips ?

    have a good day !

  2. #2
    SLAP~YA's Avatar
    Join Date
    May 2013
    Sunshine Coast, QLD
    Pretty well cut one end open rip all the baffle plates out and weld it together again, The Riva box is smaller in size than a stock box but there is nothing inside it at all, i can't say i noticed any noticable performance increases with a riva box except it sounds cranky.

  3. #3
    This is precisely why I'm afraid , the noise

    i have a free flow and the sound is so cool , but whit the water box moded ...

  4. #4
    hdlefler's Avatar
    Join Date
    Aug 2010
    Wesley Chapel, Fl
    I have a thru-hull and a gutted oem waterbox that I got from Gus and it has a raspy nice sound to it. I do not know if any gains came from it but it sure sounds great.

  5. #5
    no picture of inside waterbox SHO oem ?

  6. #6
    Chupacobra's Avatar
    Join Date
    Jun 2012
    Orlando, FL
    It will be twice as loud if you gut it

  7. #7
    ohhh fu.... !

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