HKS 50003-M40HL Spark Plug 8 for NISSAN GT-R (R35) / SUBARU BRZ (ZС6) / TOYOTA GT86 (ZN6)

HKS Super Fire Racing M Series Spark Plugs — Iridium, Performance-Oriented

The HKS M Series spark plugs are designed for both factory and tuned engines. Made from premium iridium alloy, they deliver stable ignition, resist carbon buildup, and offer extended durability under high-performance conditions.

Key Design Features:

• 0.6 mm center electrode: Reduces voltage load, improves ignition stability and lifespan.
• Platinum chip: Works in conjunction with the iridium tip to enhance ignition and longevity.
• Short ground electrode: Reduces weight, improves vibration resistance, and increases service life.
• Thermal edge: Prevents carbon accumulation, ensuring long-term performance.

Technical Specifications:

• Brand: HKS
• Length: 13 cm
• Width: 2 cm
• Height: 2 cm
• Weight: 0.05 kg
• Plug type: HL
• Thread size: 12 x 26.5 mm
• Hex size: 14 mm