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The HKS Super Fire Racing MR45XLB spark plug is sold as a single replacement unit intended for engines compatible with this HKS part number. Designed for routine service or selective replacement in performance-oriented applications, the plug provides the core ignition function necessary for combustion. Supplied individually, it suits owners and technicians replacing a single unit or matching plugs across an engine.
HKS Super Fire Racing MR45XLB - Single
