Dinan 15-21 BMW M2/M3/M4 (F80/F82/F83/F87) High Performance Heat Exchanger

Further testing focused on the heat exchanger produced the optimized design you see before you. With 60% more volume and 19% more face area than stock along with being a whopping 40mm thick (stock is 24mm), it becomes quickly apparent how heat soak is averted with the improved setup. While the unit could be physically thicker the 40mm dimension was ultimately chosen with consideration of airflow requirements of the main radiator which is located directly behind the heat exchanger. A thicker core would diminish airflow and sacrifice normal engine cooling which would be potentially detrimental to the long term health of the engine. The increased physical stature of the heat exchanger allows a reduction in water temperatures to the intercooler an average of 9° across the RPM range. The colder water entering the intercooler then improves is efficiency and allows the intake air to be cooled by an additional 6° average across the RPM range compared to the stock unit. The reduction in intake air results in an impressive 10 HP and 20 ft-lb of torque gain without any changes in the engine tune. F80/F82/F83/F87

• 9° average water termperature reduction to the intercooler across the RPM range. Colder water improves intercooler efficiency and allows the intake air to be cooled by an additional 6° average across the RPM range compared to stock
• More Power: Consistent +10 HP / +20 LB-FT of torque on the stock engine tune
• Track tested to ensure consistent performance under extreme conditions
• 60% more core volume & 19% more face area than stock
• 40mm thick Dinan cooler vs. 24mm thick stock cooler
• Significant reduction in tendency to heat soak
• Rubber mounted for vibration isolation

Upgrade your BMW with the Dinan 15-21 BMW M2 M3 M4 High Performance Heat Exchanger, designed to optimize cooling efficiency and boost engine performance. Crafted with 60% more core volume and 19% increased face area compared to stock units, this heat exchanger effectively reduces heat soak and maintains optimal operating temperatures during demanding driving conditions. The 40mm thickness strikes a balance between increased cooling capacity and airflow requirements for the main radiator, ensuring consistent engine temperatures without compromising airflow. This design consideration is critical for maintaining the long-term health of your engine while delivering superior cooling performance.
By reducing water temperatures entering the intercooler by an average of 9°F across the RPM range, the Dinan heat exchanger enhances intercooler efficiency, resulting in an additional 6°F cooler intake air. This cooler intake air translates directly into improved engine power and torque, with gains of approximately 10 horsepower and 20 ft-lb of torque without any tuning modifications. The unit is track-tested, ensuring reliable performance under extreme conditions, and features rubber mounting to isolate vibrations, prolonging longevity. Compatible with a range of BMW models from 2015 to 2021, including the M2, M3, and M4, this high-performance heat exchanger is an essential upgrade for enthusiasts seeking to maximize their vehicle's cooling capabilities and horsepower output.
Constructed with durability and efficiency in mind, the Dinan heat exchanger is a proven solution for reducing heat soak, improving throttle response, and maintaining consistent power delivery during spirited driving. Its design preserves airflow to the main radiator while delivering significant thermal advantages, making it an ideal choice for performance-oriented BMW owners who demand reliability and enhanced cooling performance.

Features:

• 9°F average water temperature reduction to the intercooler across the RPM range, improving intercooler efficiency

• Additional 6°F cooler intake air across the RPM range compared to stock units

• Provides a consistent +10 HP and +20 lb-ft of torque on stock engine tune

• Track tested for reliable performance under extreme conditions

• 60% more core volume and 19% more face area than stock units

• 40mm thickness designed to balance cooling performance and airflow needs

• Significantly reduces heat soak to maintain optimal engine temperatures

• Rubber-mounted for vibration isolation and durability

Fitment:
BMW M2 Competition 2019
BMW M2 Competition 2020
BMW M2 Competition 2021
BMW M3 Base 2015
BMW M3 Base 2016
BMW M3 Base 2017
BMW M3 Base 2018
BMW M4 Base 2015
BMW M4 Base 2016
BMW M4 Base 2017
BMW M4 Base 2018
BMW M4 Base 2019
BMW M4 Base 2020
BMW M4 CS 2019
BMW M4 CS 2020
BMW M4 GTS 2016