NGK Iridium IX plugs were designed specifically for the performance enthusiast. Fine wire centre electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today's high-tech, high performance engines.
Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
Laser-welded iridium centre electrode tip
Platinum disc welded to backside of ground electrode provides long life
Trivalent metal plating for superior anti-corrosion and anti-seizing