| Year | Make | Model |
|---|---|---|
| 2015 - 2021 | BMW | M2 |
| 2014 - 2018 | BMW | M3 |
| 2014 - 2020 | BMW | M4 |
1
/
of
6
Dinan High Performance Heat Exchanger | BMW M3 S55 (15-18) (D780-0001A)
Dinan High Performance Heat Exchanger | BMW M3 S55 (15-18) (D780-0001A)
SKU:D780-0001A
In stock
Regular price
$749.95 USD
Regular price
$843.95 USD
Sale price
$749.95 USD
Unit price
/
per
Couldn't load pickup availability
▶ Vehicle Fitments
The Dinan 15-18 BMW M3 S55 High Performance Heat Exchanger is an upgraded cooling component designed to improve heat dissipation and engine performance. Constructed with a larger volume—60% more than stock—and increased face area by 19%, this heat exchanger effectively reduces heat soak during demanding driving conditions. Its 40mm thickness enhances cooling capacity without compromising airflow to the main radiator, which is situated directly behind the unit. The design optimizes water flow to lower temperatures entering the intercooler by an average of 9°, resulting in more efficient cooling. This cooler water intake enhances intercooler performance and decreases intake air temperature by an additional 6° across the RPM range, leading to improved engine efficiency and power output. The upgrade delivers notable gains of 10 horsepower and 20 ft-lb of torque without requiring engine tune adjustments.
This high-performance heat exchanger is specifically engineered for 2015-2018 BMW M3 models equipped with the S55 engine. It is a direct bolt-on replacement that fits seamlessly into the vehicle’s cooling system, offering a reliable upgrade for street and track use. Designed with consideration for airflow and cooling needs, it maintains optimal engine temperatures during high-stress driving. The kit includes the heat exchanger itself, with no additional components required for installation. Suitable for enthusiasts seeking enhanced cooling capacity and performance, this product ensures long-term durability and improved thermal management for the S55-powered M3.
Share
Overview
Overview
Dinan Performance Parts
Fits 2015–2018 BMW M3 with S55 Engine
Part #: D780-0001A
Overview
The Dinan High Performance Heat Exchanger is a specially engineered cooling component designed for the BMW M3 models equipped with the S55 engine from 2015 to 2018. This high-quality upgrade is intended for enthusiasts seeking improved thermal management, enhanced response, and increased reliability under demanding driving conditions. By optimizing heat dissipation, this heat exchanger helps maintain consistent engine temperatures, supporting peak performance and long-term durability.
Key Features
- Constructed with a larger volume and increased face area for superior heat transfer
- Thickened core measuring 40mm to improve cooling capacity without obstructing airflow to the main radiator
- Designed to reduce heat soak and lower water temperatures across the RPM range
- Supports cooler intake air temperatures, enhancing engine efficiency
- Made from durable, high-quality materials engineered for long-lasting performance
- Optimized for seamless fitment in the OEM engine bay
- Helps prevent overheating during high-performance driving or track use
Construction & Design
The Dinan Heat Exchanger features a carefully engineered core with 60% more volume and 19% more face area than the stock unit. Its 40mm thickness strikes a balance between maximizing heat dissipation and maintaining proper airflow to the radiator behind it. The design emphasizes durability and efficient thermal transfer, ensuring reliable operation over time.
Performance & Response
This upgrade effectively reduces water temperatures to the intercooler by an average of 9°, which in turn cools intake air by an additional 6°. The result is a more consistent intake charge, supporting a noticeable increase in response and engine efficiency. Without any tuning modifications, users can expect an increase of approximately 10 horsepower and 20 ft-lb of torque, contributing to a more responsive driving experience.
Installation & Fitment
The Dinan High Performance Heat Exchanger is designed as a direct bolt-on replacement for the stock unit, requiring no additional modifications for installation. Proper fitment ensures optimal thermal performance and seamless integration into the OEM cooling system.
