The laser-welded Iridium chip on the center electrode has a diameter of just 0.6 mm. This keeps the ignition voltage requirement low and ensures a powerful ignition spark.

A specially developed annular gap prevents the deposition of soot particles and thus prevents the ignition voltage from flowing away. This is particularly advantageous in frequent stop-and-go traffic.

With standard nickel spark plugs, the gap between the electrodes increases over time. The quality of the ignition is impaired and misfiring occurs. With Iridium spark plugs, the gap between the electrodes remains almost constant over the entire service life.

The small electrode diameter and the beveled ground electrode improve the flamming of the air-fuel mixture. As a result, the engine runs absolutely smoothly and the vehicle accelerates more spontaneously.

The Iridium IX spark plug generally lasts twice as long as a standard nickel spark plug. It is the most advanced spark plug on the market and even saves money and installation and removal time thanks to its longevity.