Engine, Intake, Exhaust Modifications to your Normally Aspirated Hyundai engine. Cold Air Intakes, Spark Plugs/wires, Cat back Exhaust...etc.

Will changing sparkplugs after a retune screw things up?

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Old 10-11-2010, 07:55 AM
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Default 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?
Old 10-11-2010, 08:03 AM
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unless you are changing heat range

no
Old 10-12-2010, 11:56 PM
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The iridium plugs are just slightly better than the copper ones. I wouldn't worry about it.






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