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(Price shown is per set of 4 spark plugs) The HKS Super Fire Spark Plug is equipped with an iridium core, .4mm fine wire center electrode, a U-groove tapered side electrode and a high corrosion-resistant nickel plated housing.
This high performance plug still allows for easy start ups and prevents misfires during warm up and day-to-day driving. The melting point of iridium (2454 C) is higher than that of platinum (1769 C). Therefore, if detonation occurs, the iridium alloy can prevent melting off or breakage to the electrode.
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