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will 99 to 98 headers work on a 2000

This is a discussion on will 99 to 98 headers work on a 2000 within the External Engine forums, part of the LSx Technical Help Section category; Hey is there a way for headers for a 98 to 99 trans am fit on a 2000 just noticed ...

  1. #1
    Junior Member red-bandit's Avatar
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    2000 pontiac firebird v6

    Angry will 99 to 98 headers work on a 2000

    Hey is there a way for headers for a 98 to 99 trans am fit on a 2000 just noticed that they were for the 99 two days after ordering them so please help ??

  2. #2
    Senior Member Zboner's Avatar
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    yes will fit

  3. #3
    Trans Am for life baby SexyTransAm's Avatar
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    in a word... yes


    95 TA A4, Black on Black C5 Z06 wheels, CAI, 160 powerstat, TB coolent bypass, TB foil, LT4 Knock Sensor, STB, SFC, Poly trans and torque arm mounts, flowmaster muffler, gutted cat, and hypertech tuned.
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    Junior Member red-bandit's Avatar
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    2000 pontiac firebird v6

    what would have to be done for them too ?

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Emmissions headers or off-road?

  6. #6
    Junior Member red-bandit's Avatar
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    2000 pontiac firebird v6

    Emmissions

  7. #7
    Junior Member red-bandit's Avatar
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    2000 pontiac firebird v6

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  8. #8
    Senior Member JonB's Avatar
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    2005 GTO

    The only difference is they will have a port for the egr that will require a block of plate. I run 98-99 macs on my 01 z28.
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    Sold 01 z28

  9. #9
    Junior Member red-bandit's Avatar
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    2000 pontiac firebird v6

    where can i get the block kit ?? and can i get one that will take the hole egr system out ?

  10. #10
    Senior Member JonB's Avatar
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    Its just a tube that comes off one of the primarries and runs up to the front primary where you would then attatch the proper fitting(this would be on a stock 98-99) and then that would run up to the tb where the egr valve is.

    Heres a link to egr block off plate It's down towards the bottom of the page. I believe you need the LS1 EGR Header Block-off Plate that is $8.

  11. #11
    Junior Member red-bandit's Avatar
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    2000 pontiac firebird v6

    Question

    LS1 EGR Header Block-off Plate $8.00 buySS298LS1 AIR Block-off Plates $8.00 buySS398LS1 EGR/AIR Block-off Set $14.00 buySS498LS1 EGR Manifold Plug

    which ones would need if i wanted it for the header and the top of the throttle body ??

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