Given the age of the E28 M5 and E24 M6, it is definitely worthwhile to upgrade the cooling system. The factory systems from the 80’s were fine at the time, but cooling technology has come a long way since then. So if you’re looking for the best possible cooling system, then look now further than the new CSF BMW E28 M5 / E24 M6 High-Performance All-Aluminium Radiator.

CSF teamed up with A/C Solutions to develop this new radiator. Their founder, Austin Caccavo, is a long time E28 enthusiast. He started the company after updating the A/C system on his own E28. The relationship began with CSF manufacturing A/C condensers for their upgrade and conversion kits which eventually led to Austin asking if CSF would make a High-Performance radiator for the E28 M5. Austin and his team worked closely with CSF’s engineering team to develop this radiator for perfect fitment, optimal performance, and all the features E28/E24 owners could hope for.

The CSF radiator features a 1-Row 31mm aluminium core that improves heat dissipation. CSF’s Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. With ~35% more cooling fins, the CSF Radiator will outperform the OEM unit by a significant margin. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance. The radiator mounts in the factory location and requires no modifications or cutting.