For Xtreme Performance and Xtreme Value, Autolite® XP™
Spark Plugs offer an iridium-enhanced
.6mm finewire with better overall ignitability and durability in a Hi-Performance category.
In addition, the Revolution HT® spark plugs are specifically designed for
Hi-Performance
deliverance in Ford Motor Company®'s 4.6L, 5.4L, and 6.8L 3-valve engines.
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