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The NGK Iridium IX spark plug box of 4 targets performance-minded drivers seeking sharper throttle response and efficient combustion. A fine iridium center electrode offers extreme ignitability and long life, while the tapered ground electrode improves starting, idling and throttle response. Trivalent metal plating prevents corrosion and seizing, and the robust ceramic insulator supports consistent spark performance and durability under spirited driving conditions.
NGK Iridium Premium Spark Plug Box of 4 (BR10EIX)
