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Catalytic Converter question

This is a discussion on Catalytic Converter question within the External Engine forums, part of the LSx Technical Help Section category; This may be a stupid question bear with me. I'm thinking about gutting my cat's. I'm in PA so i ...

  1. #1
    Junior Member Ruthie's Avatar
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    Catalytic Converter question

    This may be a stupid question bear with me. I'm thinking about gutting my cat's. I'm in PA so i need them for emissions, but the car never see's 5,000mi a year so im exempt. If i hollow out the cats will that give me a raspy sound or would it sound like a ORY? I'm after both power and noise. I'm running a borla adjustable with no plates and Kooks LT headers.

    Thanks for any input

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    Life in the Fast lane sunsetorangess's Avatar
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    Which cats do you have on there now?
    Since you have lt's i would say you allready have high flow cats, If so you wouldnt benefit by destroying them.
    J
    2001 SS, Its not the car its the Driver that matters....

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    Junior Member Ruthie's Avatar
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    I beleive they are magnaflow and they are hi-flow. They're the ones that come with the kooks setup.
    Would sound increase by gutting them if power isn't a big factor?

  4. #4
    Life in the Fast lane sunsetorangess's Avatar
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    I personaly dont think you will get any sound or power increase.
    J

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    The Bandit Wesman's Avatar
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    Quote Originally Posted by Ruthie View Post
    I beleive they are magnaflow and they are hi-flow. They're the ones that come with the kooks setup.
    Would sound increase by gutting them if power isn't a big factor?
    Very little, probably not worth your trouble.

    Any power increases will be offset by the turbulence created from having empty cat casings that the exhaust has to flow through.

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Quote Originally Posted by Ruthie View Post
    I beleive they are magnaflow and they are hi-flow. They're the ones that come with the kooks setup.
    Would sound increase by gutting them if power isn't a big factor?
    It will sound like shit. Trust me, I have heard it and it sounds horrible

  7. #7
    Junior Member Ruthie's Avatar
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    Good enough, i think i'll leave em alone. just wanted the opinions before i wrapped the y pipe.
    Thanks guys

  8. #8
    Impounded
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    Good choice Ruthie,we will all breath better too.Cats are very important to the environment and the air we breath.You can't imagine how much toxic waste comes out your tailpipe and gets dumped into the air.The cat helps to clean this up quite a bit.If you don't think your car dumps that much try breathing the air that comes out your tailpipe for just 1 min....bet you don't get to breath the second min.

  9. #9
    Senior Member INMY01TA's Avatar
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    Get a Kooks ory. Open Borla, ory, and Long Tubes here. Sounds like pure evil.

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