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  • #1

    I think I'm screwed...

    Is the exhaust the same from before the catalyitic converter to after the muffler the same from 89' to 91'? my problem is that I pulled/cut off my old muffler/pipe/cat off of my 89'LX and I am trying to put on a cat/pipe/muffler from a 91'...will it work or am I screwed now that I took off the old one? I noticed that the cats are different. on the 89' there is a pipe going back into the engine somewhere...I think it might be a recirculater or something...It is not on the 91' ...is it necessary? is the length and shape of the middle pipe the same on both cars? can I just swap out the cat and will it fit? I am out of time for today and I have to go to work tomorrow, so as soon as I can figure this out the better. Thanks Guys!
    ~Daniel
    89' Maroon and black Festiva LX with a sunroof. :alien:
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  • #2
    just build a block off plate for the AIR tube on the down pipe and everything else is the same.
    Trees aren't kind to me...

    currently: 2 88Ls (Scrappy and Jersey), 88LX, 90L(Pepe), 91L, 91GL (Skippy) 93 GL Sport (the Mighty Favakk), 94 (Bruce) & 95 Aspire SEs, 97 Aspire (The Joker),
    94 Justy 4WD, 87 Fiero GT, plus 2 parts cars. That's my fleet.

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    • #3
      ^^ The carbed Festies had basically a return tube from the cat back up to the air cleaner housing. The FI's are just a straight through cat. So, like festyboy said, just block off the small tube coming off the side of the cat that you have, and you should be fine.

      Dumb thieves go to prison, smart ones go to work for the Government.

      1988 L - 232K miles Batstiva
      1989 L - 247K miles Slick
      1990 L - 281K miles Orphan Annie
      Let the hoarding begin!! :mrgreen:

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      • #4
        I was just worried that their might be some sort of pressure problem, but if not, than cool!
        I took a bolt and shoved/screwed it up into the hose and clamped it down, do you think that will be enough? Thanks again guys! I drove it to work today and I found out that I have to get used to driving something so quiet again...lol
        Last edited by Ogrestiva; 06-30-2009, 09:37 AM.
        89' Maroon and black Festiva LX with a sunroof. :alien:

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        • #5
          Should do it. Guess you will know when you fire it up. When I bought mine (direct fit for a carbed festiva) that little pipe on the cat was capped off, and it was not easy to break that cap. But I think for an FI festiva, all I needed to do was leave that cap in place. So you should be fine.

          Dumb thieves go to prison, smart ones go to work for the Government.

          1988 L - 232K miles Batstiva
          1989 L - 247K miles Slick
          1990 L - 281K miles Orphan Annie
          Let the hoarding begin!! :mrgreen:

          Comment

          • #6
            Just so you know I have an 89' carb'ed and I put an FI cat on it. I plugged up the pipe coming from the engine.
            89' Maroon and black Festiva LX with a sunroof. :alien:

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            • #7
              My bad, guess my advice was backwards. Thought you meant you had a carbed cat on a FI car. Not really sure what happens if you block the tube coming down from the carb.

              Dumb thieves go to prison, smart ones go to work for the Government.

              1988 L - 232K miles Batstiva
              1989 L - 247K miles Slick
              1990 L - 281K miles Orphan Annie
              Let the hoarding begin!! :mrgreen:

              Comment

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