br9eix solid ix iridium plug

ngk's ix iridium series plugs were designed specifically for the performance enthusiast. fine wire center 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 corrugated ribs prevent flashover pure alumina silicate ceramic insulator, provides superior strength and better heat transfer copper core aids in heat removal triple seals prevent leakage