The NGK Laser Iridium spark plug for Evo 9 applications combines a fine iridium center electrode with a platinum ground pad for durability and even wear in distributorless systems. Engineered as an OE-equivalent, it provides high ignitability, stable spark performance and resistance to high temperatures. High-grade alumina ceramic and a copper core aid heat control and reliable starts. Sold as a box of four for Evo 9 stock-heat setups.
NGK Laser Iridium Evo 9 Stock Heat Spark Plugs Box of 4 (ILFR7H)