Why Choose Wagner Tuning?

Wagner Tuning is globally recognized for developing high-performance cooling solutions for turbocharged vehicles. Each intercooler is engineered using CFD flow simulations and high-quality materials to ensure superior thermal efficiency and durability. The Radiator Kit for BMW Z4 M40i is the perfect solution for enthusiasts looking to unlock the full potential of their platform while maintaining long-term reliability.

Wagner Tuning product information about Wagner Tuning Radiator Kit for BMW Z4 M40i 400001011

Wagner Tuning Competition Additional Water Cooler for BMW Z4 (G29) & Toyota Supra (A90) – 117% more cooling volume

Get the most out of your BMW B48 / B58 & Toyota GR Supra turbo engine! The Wagner Tuning Competition water cooler kit is the essential upgrade for optimizing the performance of the 2.0L B48 and 3.0L B58/B58M0 turbo engines. The massive 117% increase in volume drastically lowers the coolant temperature, stabilizes the system thermals, and ensures consistent maximum performance for all G29/A90 models (including OPF).

Why this water cooler kit is a must-have for the Z4 G29 & Supra A90:

Record-breaking volume expansion: The Competition racing intercooler core increases the cooler volume of the stock water cooler by an impressive +117% (16.70 liters vs. OEM 7.70 liters).
Direct performance boost: Lowers the coolant temperature in the indirect intercooler circuit. This improves intercooler cooling, stabilizes system thermodynamics, and prevents heat-related power loss.
Maximum heat transfer: The optimized ratio between internal and external cooling surface guarantees maximum heat transfer while allowing sufficient airflow for adjacent components.
Durability & protection: Equipped with a heat-conducting anti-corrosion coating for long-lasting and reliable cooling.
Plug & play installation: Installation is straightforward and virtually plug & play thanks to user-friendly installation instructions.

Technical detail: Cooling circuit optimization for B48 & B58 engines
The 2.0L B48 and 3.0L B58/B58M0 turbo engines (BMW Z4 G29 and Toyota Supra A90) use an indirect intercooler circuit-an innovative technology in which the charge air is cooled via a separate cooling water circuit. Lowering the coolant temperature is therefore the key to improving charge air performance.

The Wagner Tuning upgrade water cooler solves this bottleneck with a 117% increase in volume. The increased coolant volume keeps the system temperature at a lower level over a longer period of time. This is essential for all performance vehicles, especially the newer OPF models with increased thermal stress.

Technical data in direct comparison (OEM vs. Wagner Tuning)
The Wagner Tuning auxiliary water cooler offers decisive advantages over the standard cooler:
Volume: With 16.70 liters, the Wagner Tuning cooler offers 117% more volume compared to the OEM cooler with 7.70 liters.
Dimensions (depth): At 68 mm deep, the Wagner Tuning unit is significantly thicker than the standard cooler at 27 mm.
Cooler core: A high-performance competition racing intercooler core is used.

Dimensions of OEM water cooler:
576 mm x 495 mm x 27 mm
V = 7.70 liters
A = 2851 cm²

Dimensions of Wagner Tuning water cooler:
524 mm x 468 mm x 68 mm
V = 16.70 liters
A = 2454 cm²

Competition water cooler kit suitable for the following models:
BMW Z4 G29 20i 2.0L 145kW/197hp from 2019 (OPF model)
BMW Z4 G29 30i 2.0L 190kW/258hp from 2019 (OPF model)
BMW Z4 G29 M40i 3.0L 250kW/340hp from 2019 (OPF model)

Toyota Supra MK5 A90 GR 2.0L 190kW/258hp from 2019 (OPF model)
Toyota Supra MK5 A90 GR 3.0L 250kW/340hp from 2019 (OPF model)

Part number: 400001011
Take the performance of your turbo engine to the next level!