SKU: MMHE-G80-21AT | UPC: 840197718414
Mishimoto 2021+ BMW M3/ M4 G8X Automatic Performance Heat Exchanger
The Mishimoto Performance Heat Exchanger delivers advanced air-to-water cooling for 2021+ BMW G8X M3 and M4 models with automatic transmission, including G80, G82, G83, and 2023+ G87 M2. This all-aluminum unit replaces stock plastic parts for reliable cooling during track or street driving. It increases core volume by 23 percent and fin surface area by 44 percent for better charge air temperatures and consistent power.
Key Features
- All-Aluminum Construction: Durable end tanks, core, and CNC-machined ports eliminate plastic, with TIG-welded assembly for strength under high pressure and heat.
- Strutted Core Tubes: Internal struts resist bowing and flexing during hard cornering, maintaining efficiency in demanding conditions.
- Enhanced Cooling Capacity: Dual-pass flow and louvered fins combined with 23 percent more core volume and 44 percent greater fin area drop charge air temps versus OEM.
- Direct Bolt-On Fit: Matches factory mounting points for seamless installation on automatic transmission G8X M3/M4, works with all OEM components.
- Steel Rock Guards: Included guards protect against road debris, preventing fin damage or tube punctures for long-term durability.
Product Notes
- Designed for automatic transmission vehicles. compatible with manual as noted by manufacturer.
- Core measures 10.3 in x 11.7 in x 2.0 in. overall 12.2 in x 15.6 in x 2.7 in with 1.5 in inlet/outlet ports.
- Net weight 12.6 lbs. includes all necessary hardware for installation.
Installation Notes
- Professional installation recommended.
- Requires draining coolant system before removal of stock unit.
- Uses factory mounting hardware. no cutting or modifications needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2024 | BMW | M2 | Base |
| 2021-2024 | BMW | M3 | Base |
| 2021-2024 | BMW | M3 | Competition |
| 2022-2024 | BMW | M3 | Competition xDrive |
| 2024 | BMW | M3 | CS |
| 2021-2024 | BMW | M4 | Base |
| 2021-2024 | BMW | M4 | Competition |
| 2021-2024 | BMW | M4 | Competition xDrive |
| 2023-2024 | BMW | M4 | CSL |
Why Choose Mishimoto?
- Proven track record in performance cooling for BMW enthusiasts worldwide.
- Every unit tested for leak-free operation and thermal efficiency gains.
- Precision engineering from CAD design to dyno validation ensures perfect fit and function.
Frequently Asked Questions
- Q: Does this fit 2023+ BMW M2 G87?
A: Yes, direct fit for 2023-2024 BMW M2 Base models with automatic transmission, confirmed by manufacturer fitment data. - Q: What materials are used in construction?
A: Full 6061 aluminum construction with TIG welds, CNC ports, and high-density fins for corrosion resistance and heat transfer. - Q: What warranty coverage is provided?
A: Lifetime Warranty covers defects in materials and workmanship when installed and used properly.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Securely boxed, dimensions 20.00 x 16.00 x 6.00 inches
- Weight: Shipping weight 15.4 lbs
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