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The Mishimoto oil cooler kit for BMW E46 M3 is a performance cooling upgrade developed to lower oil temperatures for track and spirited driving. The kit features an efficient core and one-piece billet end tanks, increasing oil capacity and cooling efficiency; Mishimoto reports a proven ~30°F (16.7°C) reduction in oil temperature and roughly 0.44 qt increased oil capacity. It's intended to improve durability under high-load use.
Mishimoto BMW E46 M3 Oil Cooler Kit
