What would be the best plugs to run in my 98 GP GT with an SLP CAI and a zzp PCM?
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factory delco or ngk
Modded cars love them.
They will only last 12-15k miles though because they are copper and a cheap plug.
So if you decide to run them, plan on changing them often. Stock heat range is 606's.
Ya gt is just best to run the stockers unless u like changing plugs a lot
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