Add some much needed durability and cooling power to your M3 or M4 with the Mishimoto 2015-2020 BMW M3/M4 Performance Oil Cooler. True to form, the engineers at BMW designed the M3/M4's oil cooler with an efficient use of space in mind. Suspended perpendicular from the rest of the cooling stack, this location utilizes the Bimmer's aerodynamics in order to cool the oil, all while putting the light weight, tube-and-fin cooler in harms way of road hazards. Mishimoto made sure to beef up the oil cooler design for the F80/82 with our performance oil cooler. They ditched the lightweight design for a full aluminum, TIG-welded bar-and-plate cooler for added strength and cooling.