M Quality NGK Spark Plug & Swan Ignition Coil Kit. The NGK Laser Iridium series of spark plugs are specifically designed to achieve a high level of performance. This plug features trivalent metal plating, corrugated ribs to prevent flashover. It provides a long service life of up to 100,000km. The spark plug is an essential component of the engine and they should be regularly checked and replaced to ensure optimum performance. If you are in need of a spark plug that will perform, even under high stress and temperatures, these NGK Iridium spark plugs won't disappoint you. They feature...