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Loudmouth II

This is a discussion on Loudmouth II within the External Engine forums, part of the LSx Technical Help Section category; That y-pipe is for shorties with stock cats, or stock exhaust manifolds with stock cats. Not for Lt's. They claim ...

  1. #21
    Member Huskerz1's Avatar
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    That y-pipe is for shorties with stock cats, or stock exhaust manifolds with stock cats. Not for Lt's. They claim up to 10 additional hp Thats ridiculous! I could see it if you had a Vortec pushin air in. Anyways don't buy that y-pipe if you plan on getting Lt's.

  2. #22
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    Quote Originally Posted by Huskerz1
    That y-pipe is for shorties with stock cats, or stock exhaust manifolds with stock cats. Not for Lt's. They claim up to 10 additional hp Thats ridiculous! I could see it if you had a Vortec pushin air in. Anyways don't buy that y-pipe if you plan on getting Lt's.

    I totally agree! Dyno testing has shown +2 to -2 rwhp gains or losses. I guess you could say it doesn't do much of anything.

  3. #23
    Awaiting Activation BlackBeastLS1's Avatar
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    alright thanks for the help i think im just gonna save my money and my cam.

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