NGK’s IX Iridium Series Plugs were Designed Specifically for the Performance Enthusiast.
These plugs are 2-3 steps colder than most factory spark plugs, please read information regarding Spark plug Heat range for how and why you might need them.
These are very similar to the IRIWAY spark plugs
-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
Gap: .031″ (0.8mm)