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NGK Iridum 1-Step Colder Spark Plugs - 06-14 WRX / 04-19 STI

NGK Iridium IX Spark Plugs are designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling. 

The fine Iridium tip ensures high durability and a consistently stable spark. Iridium alloy has extremely high melting point, perfect for today's high-tech, high-pe. . . Show More >

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