A high-performance, all-aluminum radiator for the 1988-1999 BMW E36 M3 and 3-Series (323i, 325i, 328i and is/iX variants), built for high-horsepower street and track builds. It runs a 2-row 42mm core with CSF's exclusive B-Tube technology, which increases each tube's heat-transfer surface area by roughly 15% over conventional round tubes. Ultra-efficient 6.5mm multi-louvered fins maximize airflow, while CNC-machined brackets and quick-connect inlet/outlet fittings give a drop-in fit that accepts all OEM components. Finished in a smooth satin finish with an all-aluminum race-style drain plug.
| Type | High-performance all-aluminum radiator |
| Material | 100% aluminum |
| Core | 2-row, 42mm (Dual Core, B-Tube) |
| Fins | 6.5mm multi-louvered |
| Inlet / Outlet | CNC-machined quick-connect |
| Finish | Smooth satin |
| Included | All-aluminum race-style drain plug |
| Fit | Drop-in, no modifications |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1998 | BMW | 323i | Base |
| 1998-1999 | BMW | 323is | Base |
| 1988-1995 | BMW | 325i | Base |
| 1988-1995 | BMW | 325is | Base |
| 1988-1991 | BMW | 325iX | Base |
| 1996-1998 | BMW | 328i | Base |
| 1996-1999 | BMW | 328is | Base |
| 1995-1999 | BMW | M3 | Base |
| 1995 | BMW | M3 | Lightweight |
