Upgrade your vehicle's ignition system with this 4 pc Genuine Champion Spark Plug Kit. These spark plugs are specifically designed to fit and perform as a direct replacement for various models including RC8WYPB3, IFR6J11, 2667, Autolite NGK S712, Denso Bosch 59-33. The brand, Champion, is known for its high-quality products and these spark plugs are no exception. The pack size includes four spark plugs with no core charge. The Champion Iridium 9801 Spark Plugs are a perfect choice for those who want to enhance their vehicle's performance. Don't miss out on this opportunity to upgrade your vehicle's ignition system.