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The NGK Iridium IX spark plug box of 4 delivers improved throttle response and fuel efficiency through a fine iridium center electrode with high melting point durability. The tapered ground electrode enhances starting and idling, while trivalent metal plating reduces corrosion and seizing for easier service. Backed by NGK’s premium ceramic insulator and copper core, these plugs aim to provide consistent spark performance and longer service life in performance-oriented use.
NGK Iridium Spark Plugs Box of 4 (BKR7EIX)
