NGK Racing Spark Plugs 7791 4/Pack NGK RO409B8

NGK Racing Spark Plugs 7791 4/Pack NGK RO409B8

• Racing plugs feature a center electrode with a V-groove and a thicker ceramic shell for the high-heat applications in racing engines.


• Special center electrode designs and configurations to ensure durability and ignitability


• Unique ground electrode designs with different materials based on specific applications


• Race tested and approved


• Sold in standard pack only