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Discussion Starter · #1 ·
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 smell when it happens. Anyone heard of this before? Thanks in advance.
 
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