CSF High-Performance auxiliary radiator for the BMW F8X M2 Competition, M3 and M4. CSF eliminated the OE plastic mounting pod and folded it into a modular housing that fits both the left and right side, freeing space for a larger 2-row 42mm core and bigger end tanks (roughly 7% more core, 10% more tank volume than OEM). The high-efficiency core uses CSF's exclusive B-Tube technology with 6.5mm multi-louvered fins, all in 100% all-aluminum TIG-welded construction with stronger metal mounting pins and brackets. A detachable bolt-on rock guard and satin black finish protect the core from road and track debris behind the grille. All applications require two units; sold individually.
| Type | High-performance auxiliary radiator (air-to-water charge cooler heat exchange) |
| 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 |
| Finish | Satin black |
| Fit | Drop-in fit, no modifications; fits both left and right side |
| Included | Detachable bolt-on rock guard |
| Warranty | 2-year limited warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2021 | BMW | M2 | Competition |
| 2020 | BMW | M2 | CS |
| 2015-2018 | BMW | M3 | Base |
| 2015-2020 | BMW | M4 | Base |
| 2019-2020 | BMW | M4 | CS |
| 2016 | BMW | M4 | GTS |
