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The CSF radiator for 2016–2018 Ford Focus RS replaces the factory unit with a 42mm, 2-row aluminum core and triple-pass flow to dramatically improve cooling capacity. CSF’s B-Tube technology increases heat transfer, and multi-louvered fins maximize airflow across the core. This all-aluminum, TIG-welded radiator is a direct-fit upgrade aimed at controlling coolant temperatures under heavy or sustained loads.
CSF 16-18 Ford Focus RS Radiator
