Dinan High Performance Heat Exchanger - 2015-2021 BMW M2/M3/M4 | D780-0001A

The Dinan High Performance Heat Exchanger (D780-0001A) is an essential thermal management upgrade for the 2015-2021 BMW M2/M3/M4 (F8x S55 engine), specifically designed to keep temperatures down and prevent performance-robbing heat soak. Through rigorous testing, Dinan determined that replacing the heat exchanger was the most effective solution for the S55 cooling system.

This optimized unit provides a massive 60% more core volume and 19% more face area than stock, with a 40mm thickness (stock is 24mm). This increased stature allows a reduction in water temperatures to the intercooler an average of 9° across the RPM range. The colder water improves intercooler efficiency, allowing the intake air to be cooled by an additional 6° average compared to stock. This results in a verifiable and consistent gain of +10 HP and +20 LB-FT of torque on the stock engine tune, even under extreme tracking conditions.

Features:

• Verifiable Power Gains: Consistent gain of +10 HP and +20 LB-FT of torque on the stock engine tune.

• Thermal Efficiency: Provides 60% more core volume and 19% more face area than stock, significantly reducing the tendency to heat soak even after 7 aggressive pulls.

• Optimized Cooling: The 40mm thick core (vs. 24mm stock) achieves a 9° average water temperature reduction to the intercooler.

• Intake Air Reduction: The improved efficiency cools intake air by an additional 6° average, resulting in performance gains.

• Structural Quality: Features rubber mounting for vibration isolation and is track tested to ensure consistent performance under extreme conditions.

Product Contains:

• (1) Dinan High Performance Heat Exchanger (40mm thick)

• (1) Set of Necessary Mounting Hardware

Warranty This product is supported by a Manufacturer's Warranty. Note: Manufacturer warranty terms are subject to change.

Installation Instructions