Racing Spark Plug by NGK NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Fine wire iridium tipped center electrode and platinum tipped ground electrode improve ignitability, increase durability and enhance anti fouling capabilities. Special insulator nose configurations improve throttle response. Corrugated ribs prevent flashover. Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer. Copper core aids in heat removal. Triple seals prevent leakage. Features Fine wire iridium tipped center electrode Platinum tipped ground electrode Corrugated ribs Pure alumina silicate ceramic insulator Copper core aids in heat removal Triple seals prevent leakage Benefits Improved ignitability Increased durability Enhanced anti fouling capabilities Superior anti-corrosion and anti-seizing properties Prevent flashover provides superior strength and better heat transfer Applications Universal What’s In The Box? 1 – Racing Spark Plug Warranty 60 Day Warranty