NGK Spark Plugs have always been the premier spark plug choice of MTNTK Performance in every Engine Kit or Turbo Kit!
NGK Spark Plugs push the limits of performance and innovation, bringing the most advanced technology to today's high-efficiency engines.
NGK Iridium Spark Plugs feature an ultra-fine center electrode that's designed just thick enough to ensure the maximum durability and life of the spark plugs—and just thin enough to create an accurate and consistent spark. Iridium is the hardest metal used in spark plugs today—six times harder than platinum. This allowed NGK engineers to reduce the voltage requirement for a spark.