OE Fine Wire Double Iridium Spark Plug -ZR6SII3320

Double Iridium electrodes - iridium firing pin and iridium ground electrode inlay offer higher performance and 4 times longer life compared to standard copper spark plugs;OE Fine Wire design requires up to 24% less voltage to ignite;360 degree continuous laser welding increases durability for increased life;Copper core provides broader heat range to resist pre-ignition and fouling;Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize;Tapered ground electrode allows for better ignition throughout the life of the spark plug;7 year customer satisfaction guarantee (visit www.boschautoparts.com/sparkplugs for details);1 year Technician Warranty (visit www.boschautoparts.com/sparkplugs for details)