signature vs isx

Discussion in 'Trucks [ Eighteen Wheelers ]' started by cat from the valley, Feb 10, 2009.

  1. cat from the valley

    cat from the valley Medium Load Member

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    Dec 8, 2008
    jamaica
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    who has power bragging rights of the 2
     
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  3. Donk

    Donk Have a Cup Of Concrete

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    Apr 27, 2008
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    signature IS an Isx.

    signature tag relates to the top power available.
     
  4. Bigstretch

    Bigstretch Light Load Member

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    Jun 14, 2008
    NW IL
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    The Sig. 600 was the first run of the ISX.
     
  5. vegetto05

    vegetto05 Light Load Member

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    Jan 5, 2009
    KC, MO
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    A lot of guys call the non EGR ISX's Signatures...since they basically are. With that said, I'd rather have a signature.....These emission standards have got to be costly to drivers
     
  6. dieselroarmt875b

    dieselroarmt875b Medium Load Member

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    YOURAPEEIN
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    first signatures have had serious problems:cracked cylinder heads,weak rods,cranckshafts,pistons,
    cummins offer now powerpack update for them
     
  7. cat from the valley

    cat from the valley Medium Load Member

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    Dec 8, 2008
    jamaica
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    yeah i know the isx r from the sig stables but we recently aquired a 06 isx 450hp which we upgraded to 565 and we r wondering the performance and trouble it will give as its not on the road as yet, we in jamaica and a couple sigs and a couple isx's down here and them crazy, a sig600 was killing off everyone it could catch on the grades but i am told a isx has taken his bragging rights
     
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