Description
Designed for high-performance ignition systems, these HKS Super Fire Racing iridium spark plugs deliver reliable combustion and consistent spark energy for sport and racing applications. The M40 designation identifies the specific heat range and electrode geometry tailored for performance engines, while the iridium construction promotes durable, stable firing and extended service intervals. Supplied as a 4 pack for complete cylinder coverage, these plugs suit enthusiasts seeking improved throttle response and dependable ignition under demanding conditions.
Features:
- Iridium center electrode for long life
- Fine electrode tip for improved ignition
- M40 heat range designation
- Performance-oriented spark plug design
- 4-pack configuration for complete sets
Contents:
- 4 HKS Super Fire Racing Iridium Spark Plug M40
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