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Iridium Spark Plug
HKS Super Fire Racing spark plugs
are a series of high performance Iridium spark plugs that are designed
for high performance street applications that can handle high levels
of tuning and still be able to offer easy start-ups and smooth idling.
Utilizing a 0.4mm diameter Iridium plug electrode core and an U-shaped
grooved electrode lowers the required voltage for the a spark to
occur while maintaining the appropriate gapping, thus providing
a stronger ignition spark, a stable idle, and reduces misfires.
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