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The Mishimoto bar-and-plate oil cooler kit for 2015–2020 BMW F80/F82 M3 and M4 upgrades the stock tube-and-fin unit to a full-aluminum, TIG-welded cooler for improved strength and heat transfer. The thicker core increases volume by 46% and adds roughly 0.4 qt of oil capacity, while the kit includes nylon braided replacement lines and adaptors for AN fittings to address factory hardline corrosion and abrasion. It fits directly in place of the stock unit and includes Mishimoto's lifetime warranty.
Mishimoto 15-20 BMW F80 M3/M4 Oil Cooler Kit
