Spark plugs suggestions 3.8 v6 r spec - Hyundai Genesis Forum
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Spark plugs suggestions 3.8 v6 r spec

Any suggestions on best spark plugs to put in 2015 3.8 r spec ??
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OEM NGK Iridium gapped at 0.044

Equivalent Bosch and Denso's are also good. Just make sure they're OEM gap. I stick with NGK and they work very well stock or with an ECU tune.

2010 Silverstone 380GT
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