CSF OEM / High-Performance All-Aluminum Radiator for the BMW E28 M5 and E24 M6/M635CSi

An all-aluminum 1-row, 31mm-core radiator for the BMW E28 M5 and E24 M6/635CSi, intended to replace the factory 1980s-era cooling system with a more modern design. Built with CSF's B-Tube core, it installs as a drop-in replacement using OE-style brackets and connections.