CSF's all-aluminum performance radiator is a direct drop-in for the supercharged R53 Mini Cooper S with manual transmission, adding cooling capacity for high-horsepower street and track builds. It uses a 2-row 42mm core with CSF's B-tube technology, brazing a B-shaped tube to raise heat-transfer surface area roughly 15% over standard oval tubes for dual laminar flow. Multi-louvered fins with a 6.5mm fin height maximize airflow, and the radiator accepts all OEM quick-connect hoses, AC condenser, brackets and fan shroud with no modifications. It includes CNC-machined fittings, an all-aluminum race-style drain plug and a satin finish.
| Type | All-aluminum performance radiator (CSF B-Tube) |
| Material | Aluminum |
| Core | 2-Row 42mm dual core (B-Tube technology) |
| Fins | Multi-louvered, 6.5mm fin height |
| Finish | Satin |
| Fit | Manual transmission; direct drop-in, accepts factory hoses, AC condenser, brackets and fan shroud |
| Included | All-aluminum race-style drain plug |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2007 | Mini | Cooper | S |
