Ngk spark plugs ngk spark plug iridium cr9ehi-9

NGK Single Iridium Series Plugs were designed Specifically for the Performance Enthusiast. <li>The ultimate in the evolution of spark plug technology and performance from the industry leader</li><li>The iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrode</li><li>Ultra-small-diameter center electrode reduces voltage requirement and extends ignition system life</li><li>New metal shell plating has enhanced anticorrosion qualities</li><li> Fine Wire Center Electrode Ensures High Durability and a Consistently Stable Spark</li><li> Iridium Alloy has an Extremely High Melting Point, Perfect for Today's High-Tech, High Performance Engines</li><li> Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties</li><li> Corrugated Ribs Prevent Flashover</li><li> Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer</li><li> Copper Core Aids in Heat Removal</li><li> Triple Seals Prevent Leakage</li><li> Longest Life Available</li>