Performance air-to-water heat exchanger for the B58-powered Toyota GR Supra, BMW Z4, 330i and M340i, keeping intake air temperatures down on these factory-integrated intercooling systems. A 31 percent increase in core volume drops intake air temperatures 5-7F over stock, while a galvanized steel stone guard shields the core from road debris. It mounts in the factory location for a clean upgrade over the OEM unit.
| Type | Performance air-to-water heat exchanger |
| Material | Aluminum core |
| Core | 31% larger core volume vs. stock |
| Included | Galvanized steel stone guard |
| Fit | Direct fit |
| Part Number | MMHE-SUP-20 |
| Warranty | Mishimoto Lifetime 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 |
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.
