Fine iridium tip ensures high durability and a consistently stable spark
Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines
Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
Outstanding acceleration, high fuel efficiency and durability
Ultimate design, technology and performance
NGK Iridium IX Spark Plugs are the key to ultimate performance. Specifically designed to suit the needs of the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling properties.
The extremely high melting point of iridium makes it a perfect substance for use in the high-performance engines typical of today’s vehicles. Don’t just ask for a spark plug, insist on an NGK iridium plug.