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NGK Racing spark plugs (box of 4) are engineered for extreme racing conditions with special center electrode configurations and insulator designs for durable ignitability. Features include trivalent metal plating for corrosion resistance, a pure alumina silicate ceramic insulator for strength and heat transfer, corrugated ribs to prevent flashover, a copper core for heat removal and triple seals to prevent leakage.
NGK Racing Spark Plug Box of 4 (R7448A-10)
