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Newb question...:|

This is a discussion on Newb question...:| within the External Engine forums, part of the LSx Technical Help Section category; what is an exhaust cutout? does it gain hp? is it worth it?...

  1. #1
    2-Legit-2-Quit bgable's Avatar
    Join Date
    Jun 2007

    2006 Pontiac GTO

    Question Newb question...:|

    what is an exhaust cutout? does it gain hp? is it worth it?

  2. #2
    Looking for my next LSX 6-Speeder's Avatar
    Join Date
    Oct 2006
    Arlington, Va \ Richmond, Va

    2004 GTO M6 PBM

  3. #3
    LTX N20LT4's Avatar
    Join Date
    May 2007
    10's N/A

    A cutout is simply a path for air to exit the exhaust before the muffler. This is done by putting a bypass pipe somewhere in the exhaust, like right after the headers or after the cat, but always before the muffler. Yes they do increase horsepower, but it depends on what car. On my LT1's i've always got good gains without hurting the low-end too much, but on my old '98 LS1 I gained horsepower but loss a little to much on the bottom for my liking.

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