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• 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
• Four yttrium enhanced ground electrodes resist spark plug wear and oxidation for exceptional performance life

• Contains one spark plug
• Exclusive platinum technology in the center electrode for quicker starts, smoother acceleration and increased fuel efficiency
• Lower ignition voltage requirement provides reliable cold weather starting and superior operation under all driving conditions

• DiamondFire electrode technology that creates a superior spark and resulting flame front extending further into the cylinder, producing more localized pressure
• Drastic potential emissions reduction when used in 2 and 4-stroke engines (after 50 hours): 58% CO emissions reduction, 42% hydrocarbon reduction
• Significant potential power increase: > 6% to 12% (depending on engine class)

• Features superior anti-corrosion and anti-seizing properties
• Constructed from durable material
• You can depend on NGK for quality and reliability

• A lifetime limited warranty
• Built-in capacitor element stores and delivers a much more powerful spark, providing for more complete combustion
• Better throttle response, quicker ignition and improved cold starts