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High Flow Cats questions??

This is a discussion on High Flow Cats questions?? within the General Help forums, part of the LSx Technical Help Section category; If I get a 3" y-pipe or True Duals, does that mean that I need to get 3" high flow ...

  1. #1
    Member NJ2002WS.6's Avatar
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    2002 Trans Am WS.6

    High Flow Cats questions??

    If I get a 3" y-pipe or True Duals, does that mean that I need to get 3" high flow cats? or can I get 2.5"?

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    Member Mike's TA's Avatar
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    Quote Originally Posted by NJ2002WS.6 View Post
    If I get a 3" y-pipe or True Duals, does that mean that I need to get 3" high flow cats? or can I get 2.5"?
    I will be corrected if wrong, but I would think they would have to be 3" as well. Otherwise they would be an air restriction point.

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    Senior Member mrr23's Avatar
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    whatever the pipe size is, you will need that same size.

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