NGK Laser Iridium Spark Plugs
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Overview
NGK Laser Iridium Spark Plugs in Heat Range #7 are the perfect upgrade for Subaru EJ25 engines found in the WRX, STI, Liberty GT, and Forester XT. Featuring a fine-wire iridium centre electrode and a platinum ground electrode, these plugs provide superior ignition efficiency, improved throttle response, and long-lasting durability compared to conventional plugs. Ideal for both standard and mildly tuned engines, they deliver consistent performance under demanding conditions.
Key Features
- Heat Range #7 – suitable for performance and tuned applications
- Fine-wire iridium centre electrode for enhanced ignitability
- Platinum ground electrode for extended service life
- Improved throttle response and fuel efficiency
- Exceptional durability under high combustion pressures
- OEM quality, reliability, and fitment
Technical Specifications
- Type: NGK Laser Iridium
- Heat Range: #7
- Set: 4 spark plugs
- Thread Size: M14 x 1.25
- Reach: 19mm
- Hex Size: 16mm
- Resistor: Yes
Vehicle Compatibility
- Subaru WRX EJ25
- Subaru WRX STI EJ25
- Subaru Liberty GT EJ25
- Subaru Forester XT EJ25
Notes
Recommended for lightly modified or tuned EJ25 engines where a colder plug is required to maintain optimal combustion temperatures and prevent detonation. Always check vehicle-specific requirements before installation.
No instructions available for this product.
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