【Pre-gap】Spark plug Pre-gapped, can be installed directly! Thread diameter: 14mm,Thread reach: 26.5mm,Hex Size (IN): 5/8
【Iridium Design】Iridium Spark Plugs has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high performance engines
【FUEL EFFICIENCY】 These spark plugs utilize a finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption