Champion RC10WYPB4 (9001) 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: Acura, Audi, BMW, Buick, Chevrolet, Chrysler, Daewoo, Daihatsu, Dodge, Ford, Honda, Hyundai, Infiniti, Isuzu, Jaguar, Jeep, Kia, Land Rover, Mazda, Mercedes-Benz, Mitsubishi, Nissan, Oldsmobile, Peugeot, Plymouth, Pontiac, Porsche, Saab, Subaru, Suzuki, Toyota, Volkswagen, Volvo, Honda, Polaris Focused spark for maximum power Exclusive Heat-Active alloy maintains stable operating temperature under all load conditions Faster throttle response