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The NGK Iridium IX spark plug targets performance applications with a fine iridium center electrode that enhances ignitability and durability. Tapered cut ground electrode improves starting and throttle response while iridium’s high melting point provides long service life and strong anti‑fouling characteristics. Recommended for modified or high‑demand engines, Iridium IX delivers improved acceleration and fuel efficiency over standard nickel plugs.
NGK Iridium IX Spark Plug Box of 4 (BR6HIX)
