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what cut out would i need?

This is a discussion on what cut out would i need? within the External Engine forums, part of the LSx Technical Help Section category; I have the magnaflow catback, slash tips on my t/a . I believe its 3 inch. So what size cutout ...

  1. #1
    2002 Arctic White T/A Ws6islife's Avatar
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    Metallic Pewter
    2002 SLP Firehawk

    what cut out would i need?

    I have the magnaflow catback, slash tips on my t/a . I believe its 3 inch. So what size cutout would i be looking for? does the cutout go inside the header pipe and inside the catback pipe, or does the cutout go around them?

  2. #2
    Electrical Engineer KMdef9's Avatar
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    Custom Swirly Black
    2001 WS6 M6

    If you have a stock y, it should go right after the y, before the catback. You you want the stock size cutout, which IIRC is 2 1/4. I could be wrong.

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    Member jrzdude's Avatar
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    2002 Black WS6

    My QTP is a 3" and I have it welded under the Rear Passenger seat right before it goes over the axle.

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    Senior Member tatertot91's Avatar
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    Sunset Orange Metalic
    2001 Camaro SS

    The cutout is a small pipe that replaces a small section of your exhaust
    Basically a Y pipe cut off on one end with an electric valve or removable plate that bypasses the exhaust.
    Basic setup
    This is a manual setup
    Then you would basically buy an electric valve such as a QTP or DMH cutout valve

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  6. #6
    2002 Arctic White T/A Ws6islife's Avatar
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    Metallic Pewter
    2002 SLP Firehawk

    i dont have a stock y pipe. i like pajeff's idea but have no way of getting the materials for this. any way you can fabricate another one for a small charge??

  7. #7
    2002 Arctic White T/A Ws6islife's Avatar
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    Metallic Pewter
    2002 SLP Firehawk

    cos for materials maybe? and i would just cut my pipe here and weld it.

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    Any fab shop should be able to do it for not a lot of $$.

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