The Koyo racing radiator for 2013–2017 Ford Focus ST 2.0L turbo applications is a direct-fit cooling upgrade intended to improve thermal management for the turbocharged 2.0L engine. Built for track or spirited street use, it replaces the OE radiator to help control intake and coolant temperatures under sustained load, supporting consistent performance during hard driving.
Koyo 13-17 Ford Focus ST 2.0L I4 Turbo Racing Radiator