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Intermediate pipe Diameter?

This is a discussion on Intermediate pipe Diameter? within the General Help forums, part of the LSx Technical Help Section category; I bought my first Ls1 a few weeks ago, and looking to get a cut-out. I was thinking the size ...

  1. #1
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    1998 Pontiac Formula

    Intermediate pipe Diameter?

    I bought my first Ls1 a few weeks ago, and looking to get a cut-out. I was thinking the size of the pipe was 2 1/2 inches?

  2. #2
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    SOM
    1998 Pontiac Formula

    Anyone? It's all stock I would like to order this cutout tonight a positive conformation would be great. Thanks

  3. #3
    Senior Member ss~zoso~ss's Avatar
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    SS: NBM, tan top
    1998-SS, 2010 Jetta TDI

    if you arent a ws6 its either 2.5 or 2.75

    for the ws6's and SS's i think it was 3

    google it!
    98' SS Convertible Camaro-76k-Build # 1471, Cragar SS rims, RK SFC's, MAC Panhard, LSX Tune, Shaner S3,
    SLP:short thro,Strut tower brace,fan switch
    MTI Power induction kit,40 Series muffler,Pacesetter LT's + ORY,12 CD changer,3800lbs
    http://www.cardomain.com/ride/787506/1

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    Nope, just a formula, never thought of the google thing, thanks!

  5. #5
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    1998 Pontiac Formula

    got it off the fbody forum. they were saying it didn't do anything for performance, and sounded terrible, is this true? Anyone have any experience with em?

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