NGK Racing Series plugs are designed to withstand the harshest engine conditions.The iridium-tipped center electrode and platinum ground electrode improve ignitability, durability, and stain resistance.
The special structure of the insulator tip improves throttle response. Insulator corrugation prevents flashover.
Pure aluminosilicate ceramic insulation provides superior strength and heat transfer.
A copper core helps remove heat and triple seals prevent leaks.