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exhaust cutout

This is a discussion on exhaust cutout within the LT1 forums, part of the Vehicle Specific category; car= 95' formula w/6speed all stock exhaust my question=What size cutout do I need to put in front of the ...

  1. #1
    Junior Member
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    Black
    02 Ws6

    exhaust cutout

    car= 95' formula w/6speed all stock exhaust

    my question=What size cutout do I need to put in front of the stock muffler?

    Thanks

  2. #2
    Senior Member 440 rwhp trans am's Avatar
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    red ta orange gto
    97 trans am 06 gto

    i did a 3 1/2 i think.

  3. #3
    Pathelogical Liar BlackLT1Z28's Avatar
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    Black
    94 Camaro Z28

    I thought the stock piping was 2.75" or something like that. I didn't think it was over 3" though.

  4. #4
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    Black
    02 Ws6

    exhaust cutout

    come on guys, help me out
    Im thinkin stock it 2.5"

    anybody agree?

  5. #5
    Senior Member 440 rwhp trans am's Avatar
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    red ta orange gto
    97 trans am 06 gto

    i dont know i have aftermarket on mine. sorry.

  6. #6
    Pathelogical Liar BlackLT1Z28's Avatar
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    Black
    94 Camaro Z28

    Get under there with a ruler...

  7. #7
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    black
    94 z28

    Quote Originally Posted by tnnt View Post
    car= 95' formula w/6speed all stock exhaust

    my question=What size cutout do I need to put in front of the stock muffler?

    Thanks
    a tape measure would do the job

  8. #8
    LTX N20LT4's Avatar
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    10's N/A

    Stock size y-pipe is 2-7/8" - and a 3" cutout will do fine.

  9. #9
    Junior Member
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    Green
    94 Firebird Formula

    I just put a 3" cutout on mine...perfect

  10. #10
    Member Pntbll309's Avatar
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    Arctic White
    1999 Trans Am

    Just did a 3'' Flowtech on mine and its amazing. Loud as hell, wish I woulda done an e-cutout.

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