CSF High-Performance front mount heat exchanger for the BMW G8X M2, M3 and M4. It replaces the OEM single-row unit with a 2-row 42mm core using CSF's exclusive B-Tube technology, increasing core and tank volume to absorb more heat, drop intake air temperatures and improve airflow to the radiator behind it. On ZF8 automatic cars the core was designed alongside CSF's Race-Spec Dual Core Transmission Oil Cooler (CSF #8221). It is 100% all-aluminum TIG-welded with CNC-machined brackets and OEM-style quick-connect fittings, and ships with upper and lower black rock guards plus a transmission cooler mounting kit for a true drop-in fit.
| Type | High-performance front mount heat exchanger (air-to-water charge cooler) |
| Material | 100% all-aluminum, TIG-welded |
| Core | 2-row, 42mm (CSF B-Tube technology) |
| Fins | 6.5mm tall multi-louvered |
| Inlet / Outlet | OEM-style quick-connect, CNC-machined mounting brackets |
| Finish | Mirror-finish hand polish |
| Fit | Plug-and-play drop-in fit, no modifications |
| Included | Upper & lower black rock guards; transmission cooler mounting kit (manual: upper & lower guards; ZF8 auto: upper guard + trans cooler mounting kit) |
| Warranty | 2-year limited warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2025 | BMW | M2 | Base |
| 2021-2025 | BMW | M3 | Base |
| 2021-2025 | BMW | M3 | Competition |
| 2022-2025 | BMW | M3 | Competition xDrive |
| 2024 | BMW | M3 | CS |
| 2021-2026 | BMW | M4 | Base |
| 2021-2026 | BMW | M4 | Competition |
| 2022-2026 | BMW | M4 | Competition xDrive |
| 2025 | BMW | M4 | CS |
| 2023 | BMW | M4 | CSL |
