Mishimoto's performance heat exchanger replaces the front cooler in the B58's air to water charge cooling circuit with a 42mm single row, dual pass core using louvered fins and strutted tubes. It adds 31% more core volume and 48% more fin surface area than stock, which Mishimoto measured as a 5 to 7 F drop in intake air temperature. Construction is all aluminum and TIG welded with no plastic parts, and a stone guard is included to protect the core.
| Type | Charge air cooling heat exchanger (air to water circuit) |
| Core | 42 mm single row, dual pass, louvered fins, strutted tubes |
| Gains vs Stock | +31% core volume, +48% fin surface area, 5-7 F lower IAT |
| Construction | All aluminum, TIG welded, natural finish |
| Includes | Stone guard, transmission cooler mounting tabs |
| Overall Length | 28.1 in |
| Overall Height | 19.7 in |
| Overall Width | 2.4 in |
| Core Length | 24.2 in |
| Core Height | 19.5 in |
| Core Thickness | 1.6 in |
| Rows | 1 |
| Engine | B58 |
| Chassis Codes | A90 G29 |
| Fitment Notes | Some modification is required. Factory transmission cooler tabs need to be removed for proper fitment. Mishimoto heat exchanger provides new transmission cooler mounting tabs. |
| Quantity | 1 |
| Part Number | MMHE-SUP-20 |
| Warranty | Mishimoto Lifetime Limited Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2021 | BMW | 330i | Base |
| 2019 | BMW | 330i xDrive | Base |
| 2020-2025 | BMW | M340i | Base |
| 2020-2021 | BMW | M340i xDrive | Base |
| 2020 | BMW | Z4 | M40i First Edition |
| 2020-2021 | BMW | Z4 | sDrive M40i |
| 2019-2021 | BMW | Z4 | sDrive30i |
| 2024 | Toyota | GR Supra | 45th Anniversary Edition |
| 2021-2022 | Toyota | GR Supra | A91 Edition |
| 2023 | Toyota | GR Supra | A91-MT Edition |
| 2020-2022 | Toyota | GR Supra | Base |
| 2020 | Toyota | GR Supra | Launch Edition |
| 2020-2022 | Toyota | GR Supra | Premium |
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