Brisk Silver Racing B12S Spark PlugB12S Brisk Racing Silver Spark Plug Brisk SKU B12S Parameters: Thread Diameter 12mm Thread Reach 19mm 3 4" Hexagon 16mm 5 8" Seat Type Gasket Design Silver Racing Resistor No Projected No Heat Range 12 Brisk Silver Racing Spark Plugs have a smaller diameter silver core and conventional open spark hook type earth electrode give an outstanding performance in igniting high octane fuel mixture associated with alternative fuels like CNG, LPG, Propane, E85

HOR15LGS Premium LGS Brisk Racing Spark Plugs

Brisk SKU  -  BR12ZC

-Denso RU01-31(stock# 5739) retails at $45 each

Yttrium alloy earth electrode with Iridium core

as it is the case on single earth

Brisk P1 DOR15YIR-9 Replaces:

Brisk SKU  -  DOR08LGS

Minimum 3 point arc design

Brisk LR17YS Replaces:

DOR11LGS Premium LGS Brisk Racing Spark Plugs

Brisk SKU  -  D10S

P7 DR17YIR Iridium Yttrium Brisk Performance Spark Plugs