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  1. #1
    Mr Bill's Avatar
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    10 HP increase for 2003-2004 GP1300R?

    I found this on a website (http://www.maccracing.com) Anyone tried it?

    "For a full ten plus horsepower gain across the entire RPM range with an incredible boost in low end acceleration and performance, update the 03-04 GP1300R with the 2005 GP 1300R header pipe section and R&D Exhaust Power Sleeve! More horsepower with reduced detonation! The 2005 Yamaha GP1300R O.E.M. header pipe section is part # 60T-14712-10-94. The R&D 2005 Yamaha GP1300R Exhaust Power Sleeve is part # 332-13000."

    Mr. Bill


  2. #2
    Happily Self-Employed WFO's Avatar
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    Interesting

  3. #3
    I believe someone here tested that pipe and got nada out of it.

  4. #4
    philip_gpr's Avatar
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    marketing at its finest

  5. #5
    One day at a time..... N8R's Avatar
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    Quote Originally Posted by philip_gpr
    marketing at its finest
    does it work??????????????????????????????????

  6. #6

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    very interesting who on the forum done it? did they compared an 05/06 to the older models manifold port sizes? and what other modds were they running?
    before we toss it aside as marketing Yamaha did remove the power valves and I never heard anything but good said about them motor and the way they run?

  7. #7
    Knr's Avatar
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    Quote Originally Posted by philip_gpr
    marketing at its finest

  8. #8

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    i have done this mod diffently an increase in acceleration, no gains though on top end just exactly the same mines an 04

  9. #9

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    Thanks Snoopy I like hearing from the people that done it.
    not my buddy did it and it kicks but or it really sucks
    unless your buddy is Fercho
    that was for you Knr

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