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  1. #1

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    J-pipe info 3 different grades? news to me!

    FYI: just ran across this in the 2004 4tec service manual, and have also noticed the color dot before, but never knew what it meant.

    What's New : ALL 4-TEC ENGINES
    Each of the 3 types of 4-TEC engine has its
    own grade of steel for the exhaust goose
    neck.


    Parts are coded with a color dot:
    4-TEC Std: Yellow
    4-TEC Supercharged: Blue
    4-TEC Intercooled Supercharged: Red


    Why :
    Each one is calibrated to endure the different operating temperatures. Always use the right
    component for the right engine type.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  2. #2
    Moderator RX951's Avatar
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    ah ! thats good information just incase one were buying a used one
    good find

  3. #3
    West Texas RXP skoepp's Avatar
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    where is the color dot. i have 2 differnet j pipes for my rxp and cound not find the color dot.
    Last edited by skoepp; 03-25-2008 at 10:37 AM.

  4. #4
    GTXX's Avatar
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    it's a paper sticker, not very durable.

  5. #5
    lextoy's Avatar
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    hehe, thats great
    paper dot on an exhaust pipe!!!

  6. #6
    cheatin' piston popper addicted's Avatar
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    If they wasted that much engineering time and manufacturing costs for 3 different j pipes but didn't bother addressing something important, like, um, say the CERAMIC washers. . .

    tell me this isn't true.

  7. #7
    Quote Originally Posted by boostaholic View Post
    FYI: just ran across this in the 2004 4tec service manual, and have also noticed the color dot before, but never knew what it meant.

    What's New : ALL 4-TEC ENGINES
    Each of the 3 types of 4-TEC engine has its
    own grade of steel for the exhaust goose
    neck.


    Parts are coded with a color dot:
    4-TEC Std: Yellow
    4-TEC Supercharged: Blue
    4-TEC Intercooled Supercharged: Red


    Why :
    Each one is calibrated to endure the different operating temperatures. Always use the right
    component for the right engine type.
    You Sir, is a God sent to Jammer 1's world. I was looking for this! This "J" pipe has 2 go.....I am tired of it....Incorporate a 2004 to a 2009 straight pipe is on the works.....

  8. #8
    Quote Originally Posted by lextoy View Post
    hehe, thats great
    paper dot on an exhaust pipe!!!
    don't I have seen it.....

  9. #9
    The change is actually in the bellows material, the flex tube underneath the braided stainless. The change in bellows material is based on temperature for corrosion resistance for the base 4-tecs vs the 185's vs the 215's...Item #70 in this material chart...
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  10. #10
    800AMSOIL4U's Avatar
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    Quote:
    Originally Posted by lextoy
    hehe, thats great
    paper dot on an exhaust pipe!!!


    Quote Originally Posted by Jammer 1 View Post
    don't I have seen it.....
    I think he was trying to say how stupid that they put a paper dot on the exhaust that will come off. They should have put a stamp on it like the vin on a trailer then it will not come off.

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