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Copper spark plugs
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06-27-2018, 10:18 AM
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Mountain
Drives: 2017 SS 1LE, 2016 1SS (previous)
Join Date: Apr 2016
Location: Metro-Detroit
Posts: 1,871
Copper plugs will just wear out faster. As long as the heat range is correct, it shouldn't be an issue as far as "safe to use".
Mountain
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