The pfr6b-11 plug is a colder type plug reccomended for the Z by nissan, why does everyone say not to use them? If you need a colder plug this is a great plug to use. It keeps the tip cooler in the cylinder also.... Somebody tell me why everyone is against them.
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What's the deal with everyone saying you cannot use pfr6b-11 - Spddracer16:17:28 05/09/05