Brisk Silver Racing GR12S Spark PlugGR12S Brisk Racing Silver Spark Plug Brisk SKU GR12S Parameters: Thread Diameter 14mm Thread Reach 18mm . 708" Hexagon 16mm 5 8" Seat Type Tapered Design Silver Racing Resistor Yes Projected No Heat Range 12 Brisk GR12S Replaces: NGK TR8 Popular Applications: Chevy LSx Ford 4. 6 5. 4 2 Valve and 4 Valve engines Brisk GR12S Silver Racing Spark plug is designed for forced induction applications and nitrous applications. Brisk GR12S Silver Racing Spark

BRISK HI-PERFORMANCE UPGRADE SPARK PLUG - REPLACEMENT for spark plugs: NGK CR9E Denso Iridium IU27 Denso Iridium IU01-27 Autolite 4302 NOTE: one step colder spark plug (NGK heat range 10) is BRISK Racing spark plug is BRISK Silver Racing A08S

Brisk N10ZS Replaces:

Brisk SKU  -  NAOR10LGS

Brisk SKU  -  MR10

LR12SL Brisk Racing Silver Spark Plug

Brisk SKU  -  DOR08LGS

Brisk SKU  -  NAR14YS

Brisk SKU  -  HOR17YTE-1

NGK R5671A-8

Brisk SKU  -  DOR14LGS-T

Laser deposited electrodes

Brisk GR14S Silver Racing Spark plug is designed for forced induction applications and nitrous applications