Iridium IX Spark Plugs are the most technologically advanced high performance plugs available. Featuring a 0.6 mm iridium center electrode tip, they offer superior ignitability without sacrificing durability. The tapered ground electrode increases flame kernel expansion, while the superior heat range design is ideally suited to the demands of high performance environments. NOTE Price is per plug Longer life. High fuel efficiency. Better electrode anti-oxidation. Improved ignition. Better electrode anti-erosion. Superior anti-fouling. Lower required voltage.
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