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• Better fuel economy and lower emissions
• You can depend on NGK for quality and reliability
• Insulators constructed from 99 percent pure alumina silicate

• 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
• 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
• Significant potential fuel efficiency improvement: > 4% to 13% (depending on engine class)
• Significant potential power increase: > 6% to 12% (depending on engine class)

• Significant potential power increase: > 6% to 12% (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
• Drastic potential emissions reduction when used in 2 and 4-stroke engines (after 50 hours): 58% CO emissions reduction, 42% hydrocarbon reduction

• Non-CARB Compliant/Not For Sale In California
• Inverter technology passes energy through an electronic microprocessor to provide clean, stable power
• FlexPower adjustable engine speed (Eco and High modes); full enclosure for quiet, campground-friendly use