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The NGK Iridium IX spark plug is a fine-wire iridium upgrade aimed at drivers seeking sharper throttle response, improved starts and long service life. It’s recommended for modified or higher-performance applications as an OE-style enhancement. Iridium fine tips deliver extreme ignitability and anti-fouling properties; a tapered-cut ground electrode improves starting, idling and throttle response. Trivalent plating and an alumina ceramic insulator with a copper core support heat control and longevity.
NGK Iridium IX Spark Plug Box of 4 (BPR10EIX)
