How can I tell if my Cats are getting cloged?
Is there a time frame when they should be changed out? My 99 has 58k on it and in the Spring it is getting new headers/exhaust. I was planning on keeping the original Cats but when it (barely) started this morning after its cold nap I watched the exhaust and it just kinda seeps out at idle. Is that normal for this car? I am used to seeing a little more of a steady flow from cars.
Thanks,
Chris
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