My 1993 SPX 580 to 720 Swap - Page 2
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  1. #11
    PWCToday.com Is My Home Away From Home Matt Braley's Avatar
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    Re: My 1993 SPX 580 to 720 Swap

    Leaving the 580 exhaust in there was keeping him back. The 657X/720 exhaust will give you a true 85hp. In those hulls I've used aftermarket flame arrestors because space is tight.

  2. #12
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    Re: My 1993 SPX 580 to 720 Swap

    I just acquired a 1992 with the 720 in it, currently needs the wire harness and computer, how do I identify what pipe was installed. I believe the motor is from a 97 sp, has single carb

    20181230_213227.jpg
    20181230_213227.jpg

  3. #13
    PWCToday.com Is My Home Away From Home WFO Speedracer's Avatar
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    Re: My 1993 SPX 580 to 720 Swap

    That looks like a 587 pipe and the sh!tty one at that you at the least need the two piece pipe preferably from a 657 or better yet a 720, you will probably have to change the exhaust manifold to match the pipe as they mount different. You will also have to change to the shorter style waterbox.
    Last edited by WFO Speedracer; 01-13-2019 at 10:29 AM.
    Y'all know me, still the same O.G. but I been low-key
    hated on by most these &^$$@s with no cheese, no deals and no G's, no wheels and no keys, no boats, no snowmobiles, and no skis, mad at me cause I can finally afford to provide my family with groceries


  4. #14
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    Re: My 1993 SPX 580 to 720 Swap

    Okay thanks, ill be kijiji in search of a new exhaust, just waiting to get the new wire harness and computer see if the motor runs or not, what exhaust would be my best option 720 factory pipe?

  5. #15
    PWCToday.com Is My Home Away From Home WFO Speedracer's Avatar
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    Re: My 1993 SPX 580 to 720 Swap

    yes pipe off of a 95 XP , 96-97 GTI, 97 GSI or GS, or you can use the newer manifold and pipe off the newer GTI LE it has bigger bolts on the exhaust manifold to pipe and is more durable
    Y'all know me, still the same O.G. but I been low-key
    hated on by most these &^$$@s with no cheese, no deals and no G's, no wheels and no keys, no boats, no snowmobiles, and no skis, mad at me cause I can finally afford to provide my family with groceries


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