Brisk Iridium Performance P7 DR17YIR Spark PlugP7 DR17YIR Iridium Yttrium Brisk Performance Spark Plugs Brisk SKU P7 DR17YIR Parameters: Thread Diameter 14mm Thread Reach 19mm 3 4" Hexagon 16mm 5 8" Seat Type Gasket Design Iridum Yttirum Resistor Yes Projected Yes Heat Range 17 Brisk P7 DR17YIR Replaces: NGK PZFR5F 11 With very long lifespan, the P range Brisk spark plugs are the most modern design to fit modern highly efficient and stressed engines. The Iridium core center electrode is surrounded

Made out of silver the center core is isolated by a laser deposited ceramic insulator

LR11SL Brisk Racing Silver Spark Plug

HOR12LGS Premium LGS Brisk Racing Spark Plugs

Brisk SKU  -  AR10ZS

2011 Chevy Camaro V6

Design Silver Racing

Brisk SKU  -  HOR17YTE-1

CR10ZS Brisk Premium Racing Spark Plugs ZC ZS

BR08ZS Brisk Premium Racing Spark Plugs ZC ZS

GR12S Brisk Racing Silver Spark Plug

NGK R7437-8 and/or ILKR8E6 and/or IKH24 IKH27 IKH31)- EVO 9

Brisk SKU  -  QR10S