F BODY (1st GEN) LOWER ARMS

NGK IX Iridium Series plugs are designed for performance enthusiasts. They feature a fine wire center electrode for high durability and a consistently stable spark. The iridium alloy has an extremely high melting point, making it perfect for modern high-tech, high-performance engines. Benefits include improved throttle response, superior anti-fouling, and high-ignitability, delivering outstanding acceleration, fuel efficiency, and durability. The plugs also feature trivalent metal plating for anti-corrosion and anti-seizing, corrugated ribs to prevent flashover, a pure alumina silicate ceramic insulator for superior strength and heat transfer, a copper core for heat removal, and triple seals to prevent leakage.