Spark Plug-Iridium IX NGK 93501 pack of 4

About this item * Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling * The 0.6 millimeter 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 prevents fouling, the corrugated ribs on insulator prevents 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 provides superior anti-corrosion and anti-seizing properties