CSF Gen 1 B58 charge-air-cooler manifold for the BMW B58 platform (340i, 440i, 540i, 740i, M240i, X3/X4 M40i). Replaces the heat-soak-prone OEM unit with a motorsports-grade bar/plate air-to-water core offering double the OEM water-cooling capacity (12 rows vs 6). Plug-and-play with no modifications, per-runner 1/8in NPT ports for nitrous or water/methanol injection, an included KIYLEX thermal rejection spacer, and easy spin-off oil filter access.
Specifications
| Type | Air-to-water charge-air-cooler manifold |
| Core | Motorsports-grade bar/plate - 12 rows water cooling (double OEM) |
| Finish | Machined Raw Billet Aluminum |
| Features | Per-runner nitrous/water-methanol injection ports - KIYLEX thermal spacer - included fuel rail for top-feed port injection - spin-off oil filter access |
| Mount | Plug-and-play - no modifications (includes 32-part hardware kit) |
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2018 | BMW | 340i | Base |
| 2017-2019 | BMW | 340i GT xDrive | Base |
| 2016-2018 | BMW | 340i xDrive | Base |
| 2017-2020 | BMW | 440i | Base |
| 2017-2020 | BMW | 440i Gran Coupe | Base |
| 2017-2020 | BMW | 440i xDrive | Base |
| 2017-2020 | BMW | 440i xDrive Gran Coupe | Base |
| 2017-2019 | BMW | 540i | Base |
| 2017-2019 | BMW | 540i xDrive | Base |
| 2018-2019 | BMW | 640i xDrive Gran Turismo | Base |
| 2017-2019 | BMW | 740i | Base |
| 2017-2019 | BMW | 740i xDrive | Base |
| 2018-2021 | BMW | M240i | Base |
| 2017-2021 | BMW | M240i xDrive | Base |
| 2018-2019 | BMW | X3 | M40i |
| 2017-2019 | BMW | X4 | M40i |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- 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-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
