Dinan D780-0001A High Performance Heat Exchanger for 2015-2021 BMW M2 Competition, M3, and M4 (S55)

Fits 2015-2021 BMW M2 Competition, M3, and M4 models equipped with the S55 engine.

Maximize the thermal efficiency of your S55 engine with the Dinan High Performance Heat Exchanger. Engineered to eliminate heat soak during aggressive driving, this upgraded unit features a 40mm thick core—a 66% increase over the 24mm factory component. This design provides 60% more core volume and 19% more face area for superior heat dissipation. Dinan specialists optimized the 40mm thickness to ensure maximum cooling for the intercooler circuit while maintaining critical airflow to the engine radiator positioned directly behind it.

This improved thermal management reduces intercooler water temperatures by an average of 9° and lowers intake air temperatures (IAT) by an average of 6° across the RPM range. These cooler charges translate to immediate performance gains of 10 HP and 20 lb-ft of torque on a factory engine tune. The unit is rubber-mounted for vibration isolation to ensure long-term durability under track conditions.

• 60% increase in core volume and 19% more face area than stock
• 40mm thick core compared to the 24mm OE unit
• Reduces intercooler water temperatures by an average of 9°
• Lowers intake air temperatures (IAT) by an average of 6°
• Performance gains: +10 HP and +20 lb-ft torque on stock tuning
• Rubber mounted for vibration isolation and durability
• Manufacturer Part Number: D780-0001A