Premium Iridium Platinum Core: High-performance spark plug with ultra-fine 0.4mm iridium center electrode for precise ignition and extended durability.

Laser-Welded Construction: Precision-engineered with laser-welded platinum tip on ground electrode for superior anti-corrosion and heat resistance.

Optimized Combustion Efficiency: Advanced tapered cut ground electrode design ensures faster flame propagation and reduced quenching effect.

Extended Service Life: Engineered for 60,000+ miles with consistent performance under extreme temperatures (up to 1,600°F).

OEM-Equivalent Quality: Direct replacement for Seine/Cruiser/Lexus models (compatible with SK20R11/3297 S2 specifications).

Fuel Economy Boost: Patented trivalent metal plating minimizes voltage loss, improving fuel efficiency by up to 5%.

Rigorous Testing: Each unit undergoes 12-point quality control including spark gap calibration and pressure sealing tests.