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What size exhaust cut out to install

This is a discussion on What size exhaust cut out to install within the External Engine forums, part of the LSx Technical Help Section category; I have a 99 trans am and I want to install an exhaust cut out. I would like to know ...

  1. #1
    Junior Member
    Join Date
    Jan 2008
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    Houston Texas
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    Black
    1999 Trans am

    What size exhaust cut out to install

    I have a 99 trans am and I want to install an exhaust cut out. I would like to know what cut out most people install. My exhaust is all factory. I had one on my other 99 ta back in 2000 but I can't remember what size it was.

  2. #2
    Life in the Fast lane sunsetorangess's Avatar
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    Aug 2005
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    Bragg NC
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    2,835

    Met. Sunset Orange
    01 SS

    3" as far as brand i picked up a summitracing cutout, manual and only paid like 20 bucks.
    J
    2001 SS, Its not the car its the Driver that matters....

  3. #3
    Junior Member
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    Houston Texas
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    Black
    1999 Trans am

    I have a one that measures 3" out side diameter. It measures like 2 7/8 inside. is this the right one?

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