All-new plug design features a unique electrode shape that maximizes the power created by the spark plug - Diamond Fire technology

Electrode is a combination of performance and new technology that results in an improved flame kernel shape

This flame front ignites the bulk air/fuel mixture faster, moves heat into the combustion chamber faster and creates a more localized pressure front for faster pressure rise during the cylinderpower stroke

The result is more complete combustion and an improvement in engine performance

A truly premium performance plug

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Thread 14mm