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The CSF power steering cooler for 2007–2013 BMW M3 (E9X) increases cooling capacity over the OEM unit to help prevent power steering fluid overheating during spirited driving or track use. It uses a high-efficiency plate-type design with a larger core profile and installs as a plug-and-play replacement that accepts factory connections. The cooler is sized to work with common aftermarket superchargers or auxiliary exchangers mounted nearby.
CSF 07-13 BMW M3 (E9X) High Performance Power Steering Cooler
