Champion RC8WYPB3 (9801) Iridium Replacement Spark Plug, (Pack of 1) Optimal Performance: Fine-wire Iridium center electrode and platinum ground deliver maximum life Exclusive Heat-Active Alloy: Allows electrodes to reach optimal temperature quickly and remain stable under all engine loads Works with Any Engine Type: Greatest engine performance regardless of engine type or ignition system Maximum Power: With faster throttle response and focused spark Compatible with the Following Applications: Alfa Romeo, Aston Martin, Audi, Buick, Cadillac, Chevrolet, Hyundai, Kia, Lamborghini, Lexus, Maybach, Mercedes-Benz, Mitsubishi, Nissan, Oldsmobile, Porsche, Saab, Volkswagen, Volvo, Polaris Focused spark for maximum power Exclusive Heat-Active alloy maintains stable operating temperature under all load conditions Faster throttle response