Wagner Tuning BMW S55 F80 F82 F83 M3 M4 Competition Radiator Kit
Serious about cooling your BMW M3 or M4 S55 engine on the road and track? This Wagner Tuning Competition Radiator Kit is the ultimate low temperature radiator upgrade for the BMW F80 M3, F82 M4 and F83 M4 Convertible. Designed for the S55 indirect charge-air cooling circuit, this direct-fit charge cooler radiator set dramatically increases cooling system volume and surface area for stronger, more consistent performance and reduced heat soak. Part number: 400001003.
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Why upgrade the S55 charge cooler radiators
The S55 engine uses an indirect charge-air cooling system with its own water circuit. Lowering the low temperature coolant temperature directly improves charge-air cooling efficiency, stabilises intake air temperatures and fights heat soak during spirited driving and track sessions. Wagner Tuning’s high performance racing cores increase both coolant volume and external fin area while maintaining excellent airflow to surrounding components.
Key benefits
- Big increase in core volume and surface area for improved heat rejection
- Faster recovery between pulls and more stable intake temperatures
- High-efficiency competition racing cores engineered for the S55
- Heat-conductive anti-corrosion coating for lasting performance
- Designed to maintain airflow to the engine radiator and other components
- Plug and play direct replacement installation with included hardware
We have used it
We have installed and run this kit on customer M3 and M4 builds and the feedback has been consistently positive. Customers report noticeably more consistent intake temps on the road and during track days, with strong repeatable performance and confidence in hot conditions.
What is included
- 1 x front mounted radiator for the low temperature circuit
- 1 x side mounted radiator for the low temperature circuit
- 1 x carbon air shroud for the side mounted radiator
- Mounting hardware
- Installation instructions
Technical data and dimensions
Front mounted radiator
- OEM: 590 mm x 308 mm x 25 mm | Volume 4.5 litres | Area 1817 cm²
- Wagner Tuning: 568 mm x 468.4 mm x 32 mm | Volume 8.5 litres (+89%) | Area 2660.5 cm² (+46.4%)
Side mounted radiator
- OEM: 250 mm x 165 mm x 40 mm | Volume 1.65 litres | Area 412.5 cm²
- Wagner Tuning: 252 mm x 188 mm x 68 mm | Volume 3.2 litres (+94%) | Area 473.8 cm² (+14.9%)
Cores feature a carefully calculated internal to external surface ratio to maximise heat transfer while preserving airflow to the engine water radiator and surrounding components.
Fitment
- BMW F80 M3 with S55 engine
- BMW F82 M4 with S55 engine
- BMW F83 M4 Convertible with S55 engine
Installation and support
This kit is a direct replacement and installs using factory mounting points. For professional fitting we recommend Nforcd in Warwickshire. Request a fitting quote: Sales@nforcd.com.
Manufacturer
Wagner Tuning
Part number
400001003
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