NGK (4654) R7437-9 Racing Spark Plug, Pack of 1

Product Details

• You can depend on NGK for quality and reliability
• Requires less voltage to ionize the plug gap
• Fine wire iridium tipped center electrode
• Allows a stronger spark

NGK Fine Wire Racing Plugs are designed to give you a stronger spark from your existing ignition system. Slightly recessed fine wire iridium center electrode requires less voltage to ionize (jump) the plug gap. This allows a stronger spark which will better ignite the air fuel mixture leading to more power.