The NGK Racing spark plug is engineered for severe duty and competition use, offering special electrode designs and varied heat ranges to suit demanding race engines. Its insulator and electrode configurations prioritize durability and ignitability to maintain throttle response under extreme conditions. Constructed with NGK's high-grade ceramic insulators, copper cores and anti-corrosion plating, these plugs are built to withstand harsh operating environments encountered in racing.
NGK Racing Spark Plug Box of 10 (R6918C-9)