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, Chrysler, Dodge, Honda, Jeep, Mitsubishi, Porsche, Ram, Volkswagen.Seat Type: Gasket