Extreme performance upgrade over OEM spark plugs and provide a 40,000 to 50,000 mile service life.
Plugs feature a fine-wire Iridium center electrode and Nickel-alloy ground electrodes for maximum engine horsepower and torque.
Designed for fuel-injected and turbocharged engines.
Precision laser-welded electrode construction.
Trivalent Metal Plating has superior anti-corrosion and anti-seizing properties.
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NGK Iridium IX Spark Plugs are the choice of consumers, automotive enthusiasts, street racers and professional race teams around the world. Produced using advanced materials and cutting-edge technology, NGK Spark Plugs help maximize engine power and operating performance ride after ride.
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