NGK Racing Plug (R6918B-8)

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NGK Racing Plug (R6918B-8) To withstand the severe conditions that occur in racing engines, NGK Racing Spark Plugs feature electrode materials and configurations as follows: Electr ode materials - Many use precious metals such as platinum or gold/palladium for greater durability and lower voltage requirements. Electrode configurations - Fine-wire center electrodes provide better sparking and enhanced ignitability. Fine-wire ground electrodes further improve the ignitability of the plug. Ensulator configurations - Special configurations are used for the insulator noses to improve throttle response. Show more