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  1. Saab 9000 (1984 - 1998)
    Hi everyone. My exhaust has a really odd huffing noise to it every once in a while at idle. Is this a sign of a bad exhaust system? My riching out problem proubly didn't do my cat converter any favors. The rpm does drop for a half second whenever it makes the noise, and there is no smoke or...
  2. Saab 9000 (1984 - 1998)
    Hi everyone. My exhaust has a really odd huffing noise to it every once in a while at idle. Is this a sign of a bad exhaust system? My riching out problem proubly didn't do my cat converter any favors. The rpm does drop for a half second whenever it makes the noise, and there is no smoke or...
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