Champion stainless steel spark plugs have an extruded copper core in the the center of the electrode that maintains accurate control of heat range, optimizing the
performance and longevity of the spark plug. They start easily and won't rust or oxidize. The electrodes on Champion Stainless Steel Spark Plugs use a Heat-Active alloy to
reach operation temperatures quickly and maintain stable operating temperatures under varying engine loads.
Champion Stainless Steel Spark Plugs also have a pantented Mag Suppressor that provides maximum protection from radio & electronic ignition/ECU frequency
interference.
