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CSF high-performance auxiliary radiator for BMW G8X M3/M4/M2 applications is a drop-in, all-aluminum cooler with TIG-welded tanks and an enlarged 2-row, 42mm core. It uses CSF's B‑Tube and 5mm fin technology to maximize heat dissipation, increases coolant volume, and includes OEM-style quick-connect fittings and detachable rock guards. Sold individually, each unit mounts in the factory location and requires no modification.
CSF BMW G8X M3/M4/M2 High-Performance Auxiliary Radiator - Single Radiator
