
Key Features & Specs:
Fitment:
Maximize cooling performance in your BMW G8X platform with the AMS Performance Heat Exchanger for S58-powered M2, M3, and M4 models. Featuring the largest drop-in core on the market and a dual-pass design, this system delivers significantly improved heat dissipation and coolant flow. Engineered with billet 6061-T6 aluminum end tanks and an AMS-spec core, it achieves up to 16°F lower coolant temperatures compared to leading competitors. With double the fluid capacity of the OEM unit and a true bolt-on design, this heat exchanger is ideal for both stock and high-performance builds looking to reduce heat soak and maintain peak performance.