The CSF BMW S54 Swap Into E36 / E46 Chassis High Performance Radiator is a direct-fit, high-performance radiator designed to fit BMW E36 and E46 chassis models that have been fitted with an S54 engine swap. This radiator is designed to provide superior cooling capacity and durability compared to the stock radiator. It features an all-aluminum construction with a two-row core, high-efficiency brazed aluminum core, and a TIG-welded aluminum end tanks. This radiator also features a large-capacity transmission cooler and a high-capacity fan shroud with a high-flow fan. This radiator is designed to provide maximum cooling capacity and performance for those who have chosen to swap in an S54 engine into their E36 or E46 chassis.