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Registered
Join Date: May 2001
Location: Markham, Ontario, Canada
Posts: 429
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Someone told me that the main reason that they coat the headers with ceramic was for more even heat dispersion not to stop rust.
Sometimes the aftermarket headers do not last too long they develope cracks or rust out early. So you may want to hang on to the original as they are known to stick around for a while.
Mark
'86 944NA
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