Details
Product Information
CSF High-Performance front mount heat exchanger for the BMW G8X M2, M3 and M4. It replaces the OEM single-row unit with a 2-row 42mm core using CSF's exclusive B-Tube technology, increasing core and tank volume to absorb more heat, drop intake air temperatures and improve airflow to the radiator behind it. On ZF8 automatic cars the core was designed alongside CSF's Race-Spec Dual Core Transmission Oil Cooler (CSF #8221). It is 100% all-aluminum TIG-welded with CNC-machined brackets and OEM-style quick-connect fittings, and ships with upper and lower black rock guards plus a transmission cooler mounting kit for a true drop-in fit.
Specifications
| Type | High-performance front mount heat exchanger (air-to-water charge cooler) |
| Material | 100% all-aluminum, TIG-welded |
| Core | 2-row, 42mm (CSF B-Tube technology) |
| Fins | 6.5mm tall multi-louvered |
| Inlet / Outlet | OEM-style quick-connect, CNC-machined mounting brackets |
| Finish | Mirror-finish hand polish |
| Fit | Plug-and-play drop-in fit, no modifications |
| Included | Upper & lower black rock guards; transmission cooler mounting kit (manual: upper & lower guards; ZF8 auto: upper guard + trans cooler mounting kit) |
| Part Number | 8215 |
| Warranty | 2-year limited warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2025 | BMW | M2 | Base |
| 2021-2025 | BMW | M3 | Base |
| 2021-2025 | BMW | M3 | Competition |
| 2022-2025 | BMW | M3 | Competition xDrive |
| 2024 | BMW | M3 | CS |
| 2021-2026 | BMW | M4 | Base |
| 2021-2026 | BMW | M4 | Competition |
| 2022-2026 | BMW | M4 | Competition xDrive |
| 2025 | BMW | M4 | CS |
| 2023 | BMW | M4 | CSL |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty






