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Discussion Starter · #1 ·
I'm about to do a tune up and I've read a few of the threads about what type plugs, wires, etc I'll need. I'm planning on buying my stuff from Courtesy Nissan in Dallas.

Then I came across spark plug temperatures....

From what I gather, the colder range is more for modified engines?
Do NGK plats come in different heat ranges? And if so what is the recommended heat range? :-\
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