HKS Super Fire Racing Spark Plug – Single M40G Unit for High-Performance Ignition

Description

Engineered for motorsport and high‑performance street applications, this HKS Super Fire Racing M40G spark plug delivers reliable ignition for demanding driving conditions. The M40G is offered as a single unit for targeted replacement or tuning, providing consistent spark performance in racing engines and modified setups. Ideal for enthusiasts and professional tuners seeking a purpose-built spark plug from the Super Fire Racing line, it supports precise combustion control and repeatable starting across aggressive duty cycles.

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