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• Near elimination of performance inhibiting carbon deposits, dramatically longer plug life and a 5-year/100,000 mile limited warranty
• Significant potential power increase: > 6% to 12% (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

• More durability and a higher melting point than platinum
• Better center electrode anti-oxidation and anti-erosion
• You can depend on NGK for quality and reliability

• Drastic potential emissions reduction when used in 2 and 4-stroke engines (after 50 hours): 58% CO emissions reduction, 42% hydrocarbon reduction
• Significant potential fuel efficiency improvement: > 4% to 13% (depending on engine class)
• Near elimination of performance inhibiting carbon deposits, dramatically longer plug life and limited warranty for the lifetime of the first engine the plug is installed in

• Better fuel economy and lower emissions
• You can depend on NGK for quality and reliability
• Highly durable against electrical and chemical wear

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