Brisk Premium Multi-Spark Racing DR15ZC Spark PlugDR15ZC Brisk Premium Racing Spark Plugs ZC ZS Brisk SKU DR15ZC Parameters: Thread Diameter 14mm Thread Reach 19mm 3 4" Hexagon 16mm 5 8" Seat Type Gasket Design Multi Spark Resistor Yes Projected Yes Heat Range 15 Brisk DR15ZS Replaces: Brisk premium racing spark plugs are a multi spark exposed center core and 360 degree earth electrode design. Made out of silver the center core is isolated by a laser deposited ceramic insulator. This manufacturing

Brisk SKU  -  LOR12LGS

Brisk SKU  -  NOR14LGS

Champion 687 C59

Heat Range  -  17

12mm thread

Better A/F Mixture Access = More Power

The 360 degree arc design can occur on a minimum of 3 points at once

NGK Racing plug R7114-8

AR08S Brisk Racing Silver Spark Plug

3V) allows for easy setting of the spark plug gap

Brisk SKU  -  D12S

Brisk SKU  -  DR10ZS