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This is a discussion on Cat's within the External Engine forums, part of the LSx Technical Help Section category; I live in WV. one of the states where they still don't know what the emissions are . lol. at ...

  1. #1
    Join Date
    Mar 2006
    West Virginia

    Y2K WS6


    I live in WV. one of the states where they still don't know what the emissions are . lol. at least they aren't doing all sorts of tests and the like.

    I have been thinking about saying good buy to the cat's on my car ( a 94 grand marquis) simply because the pipe is tiny as hell. The only catch is that I drive it out of state a good deal, and have heard of their being emission check points.

    I was wondering what would happen if i were stopped at one of these. being from out of state and all. and also, what you guys thought. It's a minor thing on this car.. but when i get my T/A I'm definitely going to be more interested.

    Sorry for asking a not exactly GM question here.. if it is inappropriate I apologize and please delete. ..... on the GM side i did see a new t/a convert at a dealership I'm going to have to go check out!

    Thanks in advance.

  2. #2
    Join Date
    Oct 2006
    Oklahoma City

    00 LS1, WS6, V8 Gremlin
    96 & 98 GTPs, 64 'Cuda

    I'm sure the legality varies from state to state, bound to be some that would nail you.

    No reason you can't put in a high flow cat, or even a fake one. A lot of people have taken an old cat, hollowed it out and if necessary had the code written out of their PCM.

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