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NGK Racing spark plugs (R7420-11) are crafted for extreme, competitive use with specialized electrode and insulator designs to meet demanding racing conditions. These plugs balance high ignitability and durability across a range of heat ranges, and retain NGK's corrosion-resistant plating and sealing to prevent leakage. They are intended where sustained high-performance ignition is required under severe operating stresses.
NGK Racing Spark Plug Box of 4 (R7420-11)
