Description
Gain up to 3HP just by using these plugs. The ultimate in spark plug technology and performance from the industry leader. The iridium electrode is 25% smaller than a platinum electrode and just 1/4 the size of a conventional nickel electrode. Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life. New metal shell plating has enhanced anti-corrosion qualities. Comes pre-gapped. Compatible with 1999-2016 Harley-Davidson Twin Cam models; sold as a pair.
