Read about these plugs in a magazine, seem good for cars, just don't know about outboards..It's a spark plug with 3 contact points instead of one. They are said to offer gas efficiency,more power and cleaner burns. Tell me what you think..
http://www.autotrucktoys.com/300/images/e3splash.jpg
http://www.autotrucktoys.com/300/images/e3splash.jpg