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 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
