Bosch OE Fine Wire Iridium. The only iridium spark plug line engineered for both High Performance and Long Life. The ultra fine wire design and laser welded, tapered ground electrode delivers the ultimate in High Performance. The laser welded iridium tipped center and ground electrodes (Double Iridium) provide exeptionally Long Life. Product Features:Double iridium- Iridium on the ground and center electrodes for longer life and increased performanceOE Fine Wire design requires up to 24% less voltage to ignitePre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize360 degree continuous laser welding increases durability for increased lifeTapered ground electrode allows for better ignition throughout the life of the spark plug
