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• Four yttrium enhanced ground electrodes resist spark plug wear and oxidation for exceptional performance life
• Fused iridium and platinum center electrode, sintered into an extended insulator nose results in reaching self-cleaning temperature only seconds after starting and provides exceptional wear resistance
• Revolutionary surface air gap firing technology featuring Bosch's unique four ground electrode design delivers the most powerful spark for the most efficient combustion and optimum horsepower without increasing the voltage requirement

• Low fuel consumption
• Excellent acceleration and performance
• Features iridium with high melting point

• Iridium alloy has extremely high melting point, perfect for today?s high-tech, high-performance engines
• Fine Iridium tip ensures high durability
• Features superior anti-corrosion and anti-seizing properties

• Nickel plated housing provides superior resistance to corrosion and seizing
• 0.6mm ultra fine wire iridium center electrode provides exceptional ignitability
• Bosch EXCLUSIVE tapered laser-welded platinum ground electrode provides more area for flame growth and increased durability

• 100% Pure silicone jacket resists oil penetration, for lifetime protection against wire set failure
• Stainless steel Mag winding delivers maximum voltage to the spark plug for a hotter, more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static
• EPDM inner insulation stops power-robbing voltage leaks