Smooth ceramic insulator ensures a tight seal at the plug boot
Resistor plugs minimize electronic interference and can aid in reducing electrode erosion
Thread measures 14mm with 3/4 reach and 13/16" hex
Copper core aids in cooling
Features split V ground electrode
Product Review
Product Description
The SplitFire Copper Core Resistor Spark Plug's "V" design on the ground electrode is instrumental in helping to improve combustion efficiency. The flame kernel is not blocked by the ground electrode so it can travel upward through the "V" notch into the combustion chamber. The power tip projects the firing tip into the combustion chamber for maximum exposure to the air/fuel mixture.