Compared to standard spark plugs, NGK Laser Iridium provides a superior fuel burn combined with a longer service life. With 6.5 on the ‘Mohs’ hardness scale, Iridium is the second-densest element to exist (after Osmium), yet it’s also the most corrosion-resistant metal (even at temperatures as high as 2000°C ). Thanks to Iridium’s excellent electrical conductivity properties, it’s the perfect metal element to include in the manufacture of premium spark plugs.

NGK Laser Iridium Spark Plugs