Original BMW finned diff cover for added cooling, fits all medium case E30 diffs. In addition to having cooling fins, it has additional capacity of ~0.5l. Perfect for track use, this cover will help keep the fluid, clutches, and other internal parts running cooler to help reduce wear. Lower temperatures also means consistent differential performance through the session.
Includes a new gasket, speedo sensor oring, drain/fill plugs, and crush washers.
