The NGK iridium IX represents the ultimate in spark plug technology and performance. The superior properties of Iridium allow for an ultra fine center electrode. This 0.6 mm center ignitability and durability. The results are outstanding acceleration, high fuel efficiency and longer spark plug life.
0.6 mm Iridium center electrode tip Designed to just the right size. It's not too thin, ensuring high durability and spark plug life. Not too thick minimizing the voltage requirement for a consistent stable spark
Over 90% iridium alloy The perfect blend to take advantage of the extremely high melting point and superior strength of iridium under extreme high performance conditions
Trivalent metal plating Superior anti-corrosion and anti-seizing properties at high temperatures