NGK Iridium IX Spark Plug

• Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response
• 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, 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; Part number of spark plug inside the box: BKR5EIX-11