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I've searched the forum archives but no good answer on Spark Plugs....
What is a good Copper plug I can use on my 2007 R56 S?
I've always preferred copper plugs in my cars and no I don't mind changing them more often. Thanks in advance.
Currently, there is no copper core spark plug that fits the N14 / N18 (M12 X 1.25 thread diameter/pitch; 26.5mm reach, heat range of 7).
There's either silver core / tipped from Brisk, or the standard iridium or platinum plugs.