This is the NGK R0045Q-11 (5957) - Racing Spark Plug / Sparkplug - Surface Discharge Electrode.
NGK Spark Plugs can be found in every racing venue throughout the world. Whether you're a weekend warrior or an accomplished racer NGK Racing Spark Plugs are sparking winners.
NGK is the brand leader in the UK spark plug market and are the world's biggest supplier to many major car manufacturers. Each and every one of their products are designed to meet the most rigorous standards and are the professionals' choice because of their quality and technical excellence. Their plugs can be found in use by teams in F1, WRC and MotoGP. Put simply, NGK genuine spark plugs are the workhorse at the heart of smooth-running engines around the world.
For many years NGK Racing Spark Plugs have been firing racing engines throughout the world. Fine-wire center and ground electrodes provide better sparking and enhanced ignitability. Made to withstand the severe conditions that occur in racing engines they have a zinc dipped shell prevents corrosion while the triple gasket seal eliminates combustion gas leakage. Special configurations are used for the insulator noses to improve throttle response and prevent fouling with corrugated ribs on insulator to prevent flashover. The plug includes a solid copper core for a greater spark.