The CSF 00-06 BMW M3 (E46) Triple Pass Radiator is a high-performance cooling system designed to keep your BMW M3 running at peak performance. This radiator features an all-aluminum construction with triple pass design, providing maximum cooling efficiency with minimal pressure drop. The radiator is designed to fit perfectly in the BMW E46 engine bay, and includes mounting brackets and installation hardware for a quick and easy installation. The radiator also features a 1.3 bar pressure cap for optimal cooling performance.