NGK IRIDIUM IX SPARK PLUGS HEAT 9 BKR9EIX
NGK Iridium IX Spark Plugs. Designed specifically for the performance enthusiast. Iridium IX® offers extreme ignitability, improved throttle response and superior anti fouling. 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 - superior anti-corrosion and anti-seizing properties. Outstanding acceleration, high fuel efficiency and durability. Ultimate design, technology and performance. Heat Grade 9. These plugs will need gapping.