Ford Performance 3.5L Ecoboost Colder Spark plugs M-12405-35T Ford Performance Ecoboost 3.5L Colder spark plugs are designed to prevent detonation and misfires in high performance Ford Ecoboost engines. These plugs are the SP-583 spark plugs used in the 2017 Ford GT 650 HP supercar... MSRP: Was: Now: $58.00
