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The CSF radiator for 2013–2018 Ford Focus ST upgrades the OE cooler with a 31mm aluminum core and a triple-pass internal routing that forces coolant through the core three times for improved heat dissipation. CSF’s B-Tube technology increases heat transfer and multi-louvered fins maximize airflow. It’s a plug-and-play all-aluminum replacement built to reduce overheating during hard driving.
CSF 13-18 Ford Focus ST Radiator
