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I have some DC Sports Headers (Ceramic coated) that have been sitting around my garage for months now waiting to be installed. I looked at them the other day and noticed that there is rust forming in the threads where the O2 sensors screw in.

Anyone know what I should / shouldn't do to get this rust out ???!!!

Thanks
 

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They probably got exposed to humidity and eventually started to react with whatever particles were trapped in the thread. I think if you sprayed some WD-40 on a toothbrush or q-tip and brushed it gently, that should take care of the problem. After cleaning it thoroughly, use a rag or paper towel to remove any residue and then dab some connection grease on it. That is, if you plan on letting it sit around some more.
 
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