BMW E9X M3 Race-Spec Oil Cooler. The engineers over at CSF know cooling. High oil temperatures in modern cars will send you into "Limp Mode" in order to protect the engine but slows you down to a crawl and is overall an unpleasant experience.
CSF for 2014+ BMW M3/M4 (F8X) Top Mount Charge-Air-Cooler - Raw Finish
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