Ford Racing 1 step colder Spark Plug Set 2020+ Explorer ST

DESCRIPTION Ford Performance Ecoboost Colder spark plugs are designed to prevent detonation and misfires in high performance Ford Ecoboost engines.  These plugs are the same SP-583 spark plugs used in the 2017 Ford GT 650 HP supercar.    FITS all 2020-2023 Explorer ST   Features: For use in engines with higher than stock cylinder combustion pressures  One heat range colder than stock spark plug  Sold in sets of 6  Spark plugs gapped to 0.030"-inch (0.8mm)