
Further Information
The CSF BMW F8X M3/M4/M2 Competition High-Performance Auxiliary Radiator is a significant upgrade over aging OEM cooling systems. Engineered specifically for boosted S55 engines in aggressive driving conditions, this cooler eliminates factory limitations with enhanced core size and tank volume while maintaining factory mounting locations and quick-connect fittings.
Key Features:
- 2-Row 42mm high-performance core with CSF's exclusive B-Tube Technology
- ~7% larger core size and ~10% increased tank volume versus OEM
- Multi-louvered 6.5mm fins maximize surface area contact for airflow
- 100% all-aluminum TIG-welded construction with aluminum mounting pins and brackets
- Modular design fits both left and right auxiliary radiator positions
- Integrated bolt-on rock guards protect against road debris punctures
- True drop-in fit with OEM quick-connect inlet/outlet connections
- Satin black finish for OEM+ aesthetic appeal
- Individually leak and pressure tested for reliability
Includes:
- CSF High-Performance Auxiliary Radiator (sold individually)
- Detachable rock guard
- Factory-compatible quick-connect fittings
More cooling capacity. More reliability. Engineered for the F8X platform.