Brisk Iridium Performance RR14BYIR-7 Spark Plug

RR14BYIR-7 Iridium Yttrium Brisk Performance Spark Plugs  Brisk SKU  -  RR14BYIR-7 Parameters: Thread Diameter 14mm Thread Reach 25mm-1" Hexagon 16mm-5/8" Seat Type Tapered Design Iridum/Yttirum  Resistor Yes Projected Yes Heat Range  -  14 Brisk RR14YBIR-7 Replaces: Popular Applications: Ford Mustang 5.0 Coyote Chevy LT1/LT4/LSA Dodge HEMI Engines 6.1/6.4L Dodge SRT 4 Chrysler 300 Chevy Cobalt SS Saturn ION Redline Chrysler PT Cruiser Ford Focus   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 Yttrium alloy made body and earth electrode that gives very low voltage requirement prolonging ignition coil lifespan.   Lower voltage requirement stands for easier cold starts, less of a chance of a misfire due to fouling as a result of oil burning, use of alternative fuels or prolonged idling.   Features Yttrium alloy earth electrode w