Denso Spark Plug - 3324 is a high-performance spark plug designed to provide maximum ignition efficiency and improved fuel economy. It features a special nickel-alloy center electrode that helps reduce misfires and provides improved ignitability. The spark plug also features a high-grade steel shell and a copper-cored ground electrode for superior heat dissipation. This spark plug is designed to fit a wide range of vehicles and is ideal for use in high-performance applications.