An aluminium replacement for the S58's plastic intake manifold, with the charge air cooler integrated into the casting. The bar and plate core is 127mm (5 in) thick and 62 percent larger than standard, and do88 measured 511 CFM at 0.05 bar of pressure drop against 422 CFM standard, a 21 percent gain, with intake air temperature falling to 28.5 C from the OEM 33 C. Cast aluminium end tanks were chosen over CNC parts for internal flow. The manifold arrives port fuel injection ready with a fuel rail threaded for female AN-8 and designed around Injector Dynamics ID1050x or short Bosch EV14 injectors, each runner carries a 1/8 in NPT port, and a thermal barrier spacer sealed with FKM silicone O-rings isolates the manifold from head heat. Injectors and throttle body are not included.
Specifications
| Type | Aluminium intake manifold with integrated air to water charge air cooler |
| Core | Bar and plate, 127mm (5 in) thick, 62 percent larger than standard |
| Airflow | 511 CFM at 0.05 bar / 0.73 psi pressure drop, versus 422 CFM standard (21 percent higher) |
| Intake Air Temperature | 28.5 C, versus 33 C OEM |
| Fuel Rail | Included, female AN-8 threads, suits Injector Dynamics ID1050x-34-14-14 or short Bosch EV14 injectors |
| Ports | 1/8 in NPT port per cylinder runner plus a 3 port 1/8 in NPT sensor pad, sealing plugs supplied |
| Included | Thermal barrier spacer, 12 FKM silicone sealing rings, wire harness brackets, silicone water hose, fuel rail and mounting hardware |
| Not Included | Injectors and throttle body |
| OEM Replacement | 17518092584 |
| Quantity | 1 manifold assembly with hardware kit |
| Part Number | ICM-450-K |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023+ | BMW | M2 | G87 |
| 2020+ | BMW | M3 | G80 |
| 2020+ | BMW | M3 Competition | G80 |
| 2020+ | BMW | M3 CS | G80 |
| 2020+ | BMW | M4 | G82 |
| 2020+ | BMW | M4 Competition | G82 |
| 2020+ | BMW | M4 CSL | G82 |
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
