To withstand the severe conditions that occur in racing engines, NGK Racing Spark Plugs feature electrode materials and configurations as follows: Electrode materials - Many use precious metals such as platinum or gold/palladium for greater durability...
NGK Racing Spark Plug R6252K-105 (Quantity Discount on orders of 4+) Product Information The NGK R6252K-105 is one of two spark plugs that are now Spec in the SKUSA X30 Class. This is s Resistor Plug.NGK's...