The Dinan high-performance heat exchanger replaces the OE charge air cooler with a bar-and-plate core measuring 45mm thick versus the 26.75mm stock core, delivering 68% more heat-transfer surface area. Over 30 successive wide-open-throttle pulls it lowered charge air temperatures by an average of 8.7°C, with a peak reduction near 12°C, reducing the tendency to heat soak or enter limp mode. Construction is 100% TIG-welded aluminum, pressure tested, and it installs as a direct-fit replacement with no modifications.
| Type | Heat Exchanger (High Performance) |
| Material | Aluminum, bar-and-plate, 100% TIG-welded |
| Core Thickness | 45mm (vs. 26.75mm stock) |
| Quantity | 1 |
| Part Number | D780-0003 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2022-2026 | BMW | 230i | Base |
| 2023-2026 | BMW | 230i xDrive | Base |
| 2019-2026 | BMW | 330i | Base |
| 2019-2026 | BMW | 330i xDrive | Base |
| 2021-2026 | BMW | 430i | Base |
| 2022-2026 | BMW | 430i Gran Coupe | Base |
| 2021-2026 | BMW | 430i xDrive | Base |
| 2023-2026 | BMW | 430i xDrive Gran Coupe | Base |
| 2023-2026 | BMW | M240i | Base |
| 2022-2026 | BMW | M240i xDrive | Base |
| 2020-2026 | BMW | M340i | Base |
| 2020-2026 | BMW | M340i xDrive | Base |
| 2021-2026 | BMW | M440i | Base |
| 2022-2026 | BMW | M440i Gran Coupe | Base |
| 2021-2026 | BMW | M440i xDrive | Base |
| 2022-2026 | BMW | M440i xDrive Gran Coupe | Base |
| 2022-2026 | BMW | Z4 | M40i |
| 2020-2021 | BMW | Z4 | sDrive M40i |
| 2019-2026 | BMW | Z4 | sDrive30i |
| 2021-2022 | Toyota | GR Supra | A91 Edition |
| 2020-2026 | Toyota | GR Supra | Base |
| 2020-2026 | Toyota | GR Supra | Premium |
