Brisk Iridium Performance P37 RR17BYIR-9 Spark PlugP37 RR17BYIR 9 Iridium Yttrium Brisk Performance Spark Plugs Brisk SKU P37 RR17BYIR 9 Parameters: Thread Diameter 14mm Thread Reach 25mm 1" Hexagon 16mm 5 8" Seat Type Tapered Design Iridum Yttirum Resistor Yes Projected Yes Heat Range 17 Brisk P37 RR17BYIR 9 Replaces: 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 by

Brisk SKU  -  P34 ROR15YIR

15-VW (VOLKSWAGEN) Convertible

Brisk SKU  -  AR12YS

ROR14LGS Premium LGS Brisk Racing Spark Plugs

Brisk LOR17LGS Replaces:

Brisk SKU  -  RR08S

DUCATI 1198 Diavel AMG 2012 - 2013

Brisk SKU  -  BR08ZS

Brisk SKU  -  HOR15LGS

Brisk NAR12YS Replaces:

Standard and high compression engines

DR17YCY Brisk Racing Super Spark Plug