NGK (4091) R5671A-7 Racing Spark Plug, Pack of 1
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<b>[Product Information]</b><br>
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<li>Fine-wire center and ground electrodes provide better sparking and enhanced ignitability</li>
<li>Made to withstand the severe conditions that occur in racing engines</li>
<li>Zinc dipped shell prevents corrosion while the triple gasket seal eliminates combustion gas leakage</li>
<li>Special configurations are used for the insulator noses to improve throttle response and prevent fouling with corrugated ribs on insulator to prevent flashover</li>
<li>Many use precious metals such as platinum or gold/palladium for greater durability and lower voltage requirements</li>
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