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The NGK Iridium IX spark plug provides high ignitability and durability for performance-oriented applications. A fine iridium tip and tapered ground electrode improve acceleration, starting and throttle response while resisting fouling. High-grade ceramic insulation and trivalent plating protect against corrosion and seizing. Recommended for modified or higher-performance setups, Iridium IX is an OE-style upgrade that balances efficiency and longevity.
NGK Iridium IX Spark Plug Box of 4 (CR8EIX)
