NGK R5671A-8 V-Power Racing Spark Plugs 4554 (4 Plugs)

NGK R5671A-8 V-Power Racing Spark Plugs are designed with extreme use in mind and meant to withstand the most grueling racing conditions.  NGK Spark Plugs have been powering racing champions and can be found in every racing venue throughout the world.  The center electrode of NGK Racing spark plugs has special configurations and designs to ensure durability and ignitability.  Special configurations are used for a wide variety of racing applications. Note R5671A-8 stock no. 4554 Qty: 4 plugs  Cross Reference Denso IK24 BKR8EIX Features Designed for Racing: Conventional Nickel alloy center electrode with V-groove provides consistent performance Recommended Usage: Racing use only NGK's OE Ceramic Technology: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance Solid Copper Core: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Cold-Rolled Threads: Prevents cross-threading and damage to cylinder h