First Automotive Plug to Use Iridium! The DENSO Iridium Long Life plug is fast becoming the standard for today's high-tech engines. Properties of DENS
Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling. Wh
NGK Laser Iridium Long Life Stock Heat Spark NGK's Laser Iridium Spark Plugs Provide Superior Ignitability and Long Service Life. Fine Wire Iridium Ti
Laser Iridium? spark plugs provide superior ignitability and long service life. Smallest tip diameter available Iridium / Platinum surfaces ensure slo
