• OEM quality construction nickel alloy center electrode provides consistent performance
• Best for vehicles with OE nickel alloy plugs
• Not recommended on vehicles with factory precious metal plugs
• High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
• 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
• Cold-rolled threads prevents cross-threading and damage to cylinder heads
• Trivalent metal plating delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal