When you’re passionate about performance, you need a technologically advanced plug. Autolite Iridium XP utilizes an iridium-enhanced 0.6 mm finewire and proprietary platinum sidewire for improved durability* and a more focused ignition for better overall ignitability** providing optimum performance. Now with a lifetime limited warranty.

*Compared to 0.8mm finewire, multi-electrode design and standard plugs
**Compared to average of other premium brands