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

• Nickel plated housing provides superior resistance to corrosion and seizing
• Factory set pre-gap ensures ease of installation
• Bosch EXCLUSIVE tapered laser-welded platinum ground electrode provides more area for flame growth and increased durability

• Provides ease of installation - never requires adjustment
• Electrode gap is factory set to provide ease of installation - never requires adjustment
• Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance

• EPDM inner insulation stops power-robbing voltage leaks
• Backed by a "no hassle" lifetime guarantee
• "Snap lock" terminals or OEM style connectors ensures that wires are tightly crimped to the connectors to exceed OEM standards, providing worry-free installation and re-installation

• 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)