Features of NGK spark plugs include laser welding tips, improved fuel efficiency and faster starts. The top quality plugs, known as the Iridium IX, feature a special tip that provides high quality spark for better overall performance.
The OEM specific spark plugs also offer standard fitment features. This allows owners to easily replace the spark plugs, without worrying about using a gap gauge for measuring spark plug placement.
Other standard features include a triple gasket sealing process and anti-fouling characteristics. These features describe the special coatings applied to each plug, which protect against spark fouling and early failure. NGK plugs are also rated to provide consistent reliable performance.