CSF BMW S54 Swap Into E36 / E46 Chassis High Performance RadiatorBrand CSF Part Number 7211 Category Cooling Radiators Condition Brand New Original Manufacturer Packaging Because the S54 requires a much more robust oil cooling system than the E36's S52, CSF made special provisions to fit two different race spec oil coolers. To do this, the height of the radiator was reduced slightly so the oil coolers can fit under it in a factory style location. The radiator includes mounting brackets which can be adjusted to fit