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Old 09-24-2010, 11:24 AM   #1
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Join Date: Jul 2009
Location: Toronto
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Spark plug gapping

Hey guys, I couldn't find any other thread about this subject. My hayne's manual which seems to have been written in the early to mid 90's talks about gapping the plugs and all before replacing them.

Problem is, after purchasing the plugs for my m3, I realized their tip looks quite different. Instead of having a single metal arm that extends OVER the core, it has 4 little ones BESIDE and AROUND the core. That got me confused and I'm wondering whether these need to be gapped at all. Here is a pic:
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