NGK PART NUMBER: CR9EIX. Genuine NGK Iridium IX Spark Plugs. - Fine Iridium tip ensures high durability and a consistently stable spark. - Heat grade 9 for mildly tuned engines / standard in many high performance engines.
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4x Genuine NGK CR9EIX (3521) Iridium IX Performance Spark Plugs – Heat Grade 9
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