Wagner BMW Toyota B58C Chargecooler Radiator Kit - OPF (G20 G21 M340i, G29 Z4 M40i, A90 GR Supra)
Upgrade the cooling on your BMW B58C or Toyota GR Supra A90 with the Wagner Tuning Competition Chargecooler Radiator Kit. This high performance intercooler radiator is engineered specifically for OPF-equipped models and is the proven way to reduce heat soak, stabilise intake temperatures and sustain power on fast road and track. If you are looking for a BMW M340i chargecooler radiator upgrade, Z4 M40i heat exchanger upgrade or Toyota GR Supra A90 charge cooler radiator, this Wagner kit is the go-to solution for reliable B58 cooling performance.
- Competition racing core with optimised inner to outer surface ratio for maximum heat transfer and excellent airflow to surrounding components
- Massive 117 percent increase in water volume over the OEM water cooler for cooler, more consistent charge temps under repeated pulls and track use
- Heat-conductive anti corrosion coating for long-lasting, durable performance
- Direct-fit, plug and play installation using factory locations and connections (installation instructions included)
- Designed for B58C OPF models for perfect compatibility and performance
Why upgrade the B58 chargecooler radiator
The B58C turbo engine uses an indirect charge-air cooling system that relies on its own water circuit rather than ambient air. Lowering the temperature of that coolant directly improves charge-air cooling, which supports more consistent performance. Wagner’s high performance radiator increases cooling capacity and heat rejection while maintaining airflow to the main engine radiator, helping to keep the entire system under control during hard driving.
Compatibility
- BMW G20 G21 M340i and M340i xDrive 3.0L 285 kW 374 PS (2020+) OPF models
- BMW Z4 G29 Z4 M40i 3.0L 250 kW 340 PS (2018+) OPF models
- Toyota Supra MK5 A90 GR 3.0L 250 kW 340 PS (2018+) OPF models
Note: Only suitable for vehicles equipped with OPF.
Real-world results
We run Wagner cooling hardware on our own B58 platforms and our Nforcd customers consistently report noticeably more stable performance in hot weather, on repeated pulls and during track days. This is a smart, confidence-inspiring upgrade for any tuned or stock B58C OPF car looking to combat heat soak.
Fitting and support
The kit installs as a direct replacement for the factory auxiliary water radiator. Professional fitting is available at Nforcd in Warwickshire. Request a fitting quote via Sales@nforcd.com.
Compatibility check
We verify fitment before dispatch. Enter your vehicle registration number (UK) or the last 7 digits of your VIN at checkout and we will confirm compatibility.
Part number and warranty
- Part number: 400001011
- Manufacturer: Wagner
- Warranty: 2 years manufacturer warranty
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