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The HKS Super Fire M-Series spark plug for Nissan/Infiniti VQ35HR engines is offered as a single unit in a one-step colder heat range, providing a direct replacement option where a slightly cooler plug is required. It lets owners adjust thermal margins without changing spark plug family, serving as a practical service choice for VQ35HR applications that call for a colder specification.
HKS Nissan/Infinity VQ35HR M-Series Spark Plugs (One Step Colder) - Single
