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 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
