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  1. #1

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    Riva FREEFLOW exhaust questions!?

    Its only 47.00 so i am thinking about trying it...

    Is this the same thing as a PowerPipe? If not whats the diff?
    How is install?
    How much perfromance can i expect?
    With either the FreeFlow of the PowerPipe will i need to get my prop re-pitched?

    Thanks!


  2. #2
    Site Admin Green Hulk's Avatar
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    the free flow is just a pipe that bypasses the resonator.
    the power pipe replaces the entire hose.
    you will get the best performance out of the power pipe, or thru hull exhaust.
    How many RPM's you are turning now will depend on whether, or not you have to repitch your prop.

  3. #3

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    How hard is the thru hull exhaust to install?
    and also if i just get the powerpipe can i still use it if i decide to get an intercooler, or would i have to change to the thru hull exhaust?

    thanks!

  4. #4
    way2fast's Avatar
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    Thru hull isn't hard to install...takes a bit of time though and you need some basic tools including a hole cutter attachment for your drill. If you intend to go with the Riva intercooler someday, the thru hull is mandatory.

    Besides it looks and sounds great !

    Richard

  5. #5

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    i think i am turning out right around 7650 rpms...its a stock 04 gtx sc so what ever they turn out if what i am. so would i need a new prop?

    also just on the side...what is the best single perforamnce mod besides exahust? Vortech SC impeller, power filter kit, or something else?

  6. #6
    Site Admin Green Hulk's Avatar
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    Go with the power filter kit before you get the Vortech. You have to get air to the engine to make it breath.

  7. #7
    Kaybat's Avatar
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    How loud are the thru hull exhaust???I haven't heard one....is it like motocross bike loud???? Or just a bit louder than stock?Thanks

  8. #8
    Site Admin Green Hulk's Avatar
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    This is what my thru hull exhaust sounds like

    right click, save as: http://www.greenhulk.net/thruhull.mpg

  9. #9
    Moderator two2curupt's Avatar
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    Here is what mine sounded like with the shortened waterbox..."note the smoked wear ring" that is why I am spinning out of the hole...

    http://www.greenhulk.net/forum/viewt...?p=24895#24895

  10. #10
    Nonstop, all day, everyday. 01xdime's Avatar
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    My home made freeflow sounded rediculous. Especially at around 3300 rpms. Which happens to be a nice no wake zone cruising speed. Unfortunatly for everyone around including my g/f's parents who told me to get away from the boat because they can't hear, it's a lot louder.

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