Dinan Heat Exchanger for BMW/Toyota G Chassis | D780-0003

The Dinan Heat Exchanger (D780-0003) is the essential upgrade for improving the thermal management system of your BMW G-Chassis (B4x/B58) or Toyota GR Supra (A9x). While the stock setup is decent, it can quickly be overwhelmed when aggressively taxed or when power levels are increased, leading to undesirable power diminishment. The Dinan heat exchanger prevents this by allowing everything to run cooler and more efficiently.

This unit features a significantly more robust 45mm thick core (a massive increase over the 26.75mm stock core) which wields 68% more cooling surface area and volume than the OEM setup. This improvement in thermal mass translated to an average of 8.7º C reduction in charge air temps—with a maximum reduction of nearly 12º C recorded over successive wide-open throttle (WOT) pulls. Constructed with a durable bar and plate design and 100% TIG-welded aluminum, this heat exchanger reduces the tendency to heat soak / go into limp mode, extending your vehicle's ability to deliver maximum performance time and time again.

Performance & Feature Highlights:

• Superior Cooling Capacity: Features a 45mm thick core (vs. 26.75mm stock), providing 68% more cooling surface area and volume.

• Temperature Reduction: Achieves an average of 8.7º C reduction in charge air temps (max reduction of nearly 12º C).

• Extended Performance: Reduces the tendency to heat soak / go into limp mode, maintaining peak power delivery.

• Durable Construction: Built with a durable bar and plate design and 100% TIG welded, pressure tested aluminum.

• Ease of Install: Direct fit replacement with no modifications required.

• General Improvement: Improves the overall efficiency of the thermal management system, inclusive of engine cooling.

Product Contains:

• (1) Dinan High-Performance Heat Exchanger

Installation Instructions