HKS Super Fire Racing M40iL Iridium Spark Plug (NGK 8, Long Reach) - 10 Pack

The HKS Super Fire Racing M40iL is a long-reach ISO-type iridium spark plug with an NGK 8 equivalent heat range, for tuned and stock engines requiring a φ14 long-reach (26.5 mm) plug such as the Nissan 350Z VQ35DE (Z33) and similar. The 0.6 mm iridium center electrode and platinum-chip outer electrode lower firing voltage for strong ignition, with thermal-edge anti-fouling. Sold as a 10-pack (wholesale case); a typical engine needs one plug per cylinder.

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