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cutting out the cat?

This is a discussion on cutting out the cat? within the External Engine forums, part of the LSx Technical Help Section category; i was thinkin about cuttin the cat out of my car (92 lumina 3.1)... i know im not racing it ...

  1. #1
    !!!!!!!!!!!!!!!!!!!!!!!!! ATCharming's Avatar
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    cutting out the cat?

    i was thinkin about cuttin the cat out of my car (92 lumina 3.1)... i know im not racing it or anything, so no flaming please lol

    i live in a county that we have no emissions tests in. all cats do is clean up the air right? no benefits, just negatives, like robbing power, fuel eficiency, and sound?

    am i wrong about this? i asked my shop teacher to cut out my cat and weld pipes straight to the muffler, and he said i shouldnt do it cuz it would probably hurt the performance of my car, due to loss in back pressure.

    what do u all say?

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    !!!!!!!!!!!!!!!!!!!!!!!!! ATCharming's Avatar
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    im just tryin to make it run more eficiently and, hell, why not make it perform better.

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    Senior Member ss~zoso~ss's Avatar
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    it'll fuck up your PCM, it will give you a rich mixture at idle most likely unless you get an O2 sim which i dont know if they make for your car,

    my 90' volvo has a major exhaust leak before and after the cat, so the o2 sensor gets like no readings so it makes the mixture rich as hell at idle, smells like a dirtbike

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    Visualize°Design°Create SSwt00SS's Avatar
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    keep the cat, it's not worth the time or money to remove/gut it. it's a lumina for christ's sake...

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    !!!!!!!!!!!!!!!!!!!!!!!!! ATCharming's Avatar
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    Quote Originally Posted by BlackLT1Z28 View Post
    is that for me or SS up there?

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    Quote Originally Posted by SSwt00SS View Post
    keep the cat, it's not worth the time or money to remove/gut it. it's a lumina for christ's sake...
    well the thing is i wouldnt have to spend a dime on it. thats why i figured, what the hell, if all it does is good, and its free for me, then why not.

    but i guess maybe not

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    Pathelogical Liar BlackLT1Z28's Avatar
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    Quote Originally Posted by ATCharming View Post
    is that for me or SS up there?
    For SS. I don't think it would be worth it on a Lumina.

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    Quote Originally Posted by BlackLT1Z28 View Post
    For SS. I don't think it would be worth it on a Lumina.
    ss said not to tho lol. so u agree with him. if i had to spend moeny on it, it wouldnt be worth it, but itd be completely free for me

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