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The Mishimoto Performance Oil Cooler for 2015–2020 BMW F8X M3 and M4 replaces the stock unit with a full aluminum, TIG‑welded bar‑and‑plate cooler that increases core thickness by 10mm and core volume by about 46%, adding roughly 0.4 quart of oil capacity. It installs in place of the factory cooler to improve oil cooling resilience and fitment while maintaining direct replacement compatibility and includes Mishimoto's Lifetime Warranty.
Mishimoto 2015+ BMW F8X M3/M4 Performance Oil Cooler
