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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
• Fusion's voltage requirement increases less over time versus other iridium plugs for longer reliable performance of the vehicle's ignition system
• Four yttrium enhanced ground electrodes resist spark plug wear and oxidation for exceptional performance life

• Significant potential power increase: > 6% to 12% (depending on engine class)
• Significant potential fuel efficiency improvement: > 4% to 13% (depending on engine class)
• DiamondFire electrode technology that creates a superior spark and resulting flame front extending further into the cylinder, producing more localized pressure

• You can depend on NGK for quality and reliability
• Better center electrode anti-oxidation and anti-erosion
• Superior Anti-Fouling and Improved ignition

• Features iridium with high melting point
• Long life and high reliability
• Stable combustion during idling

• Taper cut reduces the voltage necessary and provides better throttle response
• You can depend on NGK for quality and reliability
• Includes laser welded platinum tip on center electrode and platinum tip on the ground electrode