NGK CR8EIX 4218 Spark Plug Iridium IX

Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior fouling The 0.6mm laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect Longer insulator nose avoids fouling, the corrugated ribs on insulator avoids flashover, and a triple gasket seal eliminates combustion gas leakage Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high-performance engines Trivalent metal plating has superior corrosion and seizing properties