Iridium spark plugs: made with one of the hard metals
Spark plug which has a tip of Iridium in the Center electrode alloy, welded by means of a special procedure with the help of a laser.
Iridium is one of the toughest in the world metals, melts at 2,450 ° C and is highly resistant to erosion by sparks. This material allows you to double the life of the standard spark plugs.
On the other hand, this precious metal which makes the central electrode considerably more thin (0.6 mm thick), so the need for ignition voltage is greatly reduced and contributes to improving the distribution of the front of the flame in the combustion chamber.