NGK Racing Spark Plug Box of 4 (R7448A-9)

NGK Racing spark plugs are built for extreme use and meant to handle the most grueling racing conditions. These plugs have been powering champions and can be found in racing venues worldwide. The center electrode features special designs to ensure durability and ignitability, bringing ultra-high performance across a variety of heat ranges. Special configurations are used for a wide variety of racing applications.

The trivalent metal plating offers superior anti-corrosion and anti-seizing properties, making installation and removal easier. A pure alumina silicate ceramic insulator provides better strength and heat transfer, while special insulator nose configurations help improve throttle response. Corrugated ribs prevent flashover, and the copper core aids in heat removal. Triple seals are used to prevent leakage.