Will changing sparkplugs after a retune screw things up?
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Will changing sparkplugs after a retune screw things up?
Im getting a retune done this week. I ordered a better set of plugs and wires but they wont be here until next week sometime. Will changing the plugs from NGK Coppers (what I have now and for the retune) to NGK Iridiums do anything to throw the retune off?