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  1. #1

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    XLT vrs GPR waterbox performance

    Is there a measurable difference in a modified XLT's performance by using a GPR waterbox and the associated slightly larger exit hose and the GPR SS?


  2. #2
    Smokes's Avatar
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    Lots of views and no answers LT, maybe you can try it and tell us bro

  3. #3

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    Quote Originally Posted by Smokes View Post
    Lots of views and no answers LT, maybe you can try it and tell us bro
    I guess you are right!

  4. #4
    powerstroke specialist mikegp's Avatar
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    I've got a xl running a 1300 pv engine with the original XL exhaust, and it runs just like on the gpr. i dont know if this will help answer your question.
    i don't think just the box will make a difference.

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