Quote:
Originally Posted by jcosta79
I was looking through my service booklet and noticed the 60K spark plug change as well. I wonder why they use different spark plugs for the Nismo? There's not much of a difference between the Nismo and regular 370Z.
Or IS there?
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Probably a colder plug. The rule-of-thumb I heard growing up is one heat range lower for every 50 added HP. Not sure how accurate that is nowadays.