We use these plugs in many of our championship winning race NC23 and NC29’s and they are suitable for both road and race use.
As with all our spark plugs, we offer them here in packs of x4 or individually.
NGK’s IX Iridium Series Plugs were Designed Specifically for the Performance Enthusiast.
- 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* PRICE SHOWN IS PER SPARK PLUG. YOU WILL REQUIRE x4 QTY
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