Wagner Tuning Engine Radiator Kit for F8x BMW M3 and M4

Wagner Tuning has developed this Competition water cooler kit to maximize the performance of the BMW M3 and M4, now including an official parts certificate for added confidence and compliance. Engineered with a separate cooling water circuit and innovative cooling technology, the system significantly reduces coolant temperatures while improving charge-air performance. Featuring high-performance competition racing cores, the kit increases radiator volume by an impressive 89% at the front and 94% at the side, ensuring maximum heat transfer while maintaining sufficient airflow for neighboring components such as the engine water cooler. A thermally conductive anti-corrosion coating guarantees long-term cooling efficiency, and installation is straightforward and nearly plug-and-play thanks to Wagner Tuning’s detailed instructions.

Why the Wagner Tuning Radiator is the Best Choice for Your S55

• Wagner Tuning has developed this Competition water cooler kit to maximize the performance of the BMW M3 and M4, now including an official parts certificate for added confidence and compliance. Engineered with a separate cooling water circuit and innovative cooling technology, the system significantly reduces coolant temperatures while improving charge-air performance. Featuring high-performance competition racing cores, the kit increases radiator volume by an impressive 89% at the front and 94% at the side, ensuring maximum heat transfer while maintaining sufficient airflow for neighboring components such as the engine water cooler. A thermally conductive anti-corrosion coating guarantees long-term cooling efficiency, and installation is straightforward and nearly plug-and-play thanks to Wagner Tuning’s detailed instructions.

Features

• Complete front and side radiator upgrade for the low-temperature cooling circuit
• Increases radiator volume by 89% (front) and 94% (side) over factory units
• High-performance competition racing cores for maximum heat transfer
• Reduces coolant temperatures and improves charge-air cooling efficiency
• Supports consistent power delivery during spirited driving and track use
• Maintains proper airflow to surrounding components such as the engine radiator
• Thermally conductive anti-corrosion coating for long-term durability
• Includes parts certificate for compliance and peace of mind
• Near plug-and-play installation with detailed instructions and all required hardware

Specifications

• Dimensions: 
  • Front: 568mm x 308mm x 25 mm
  • Side: 252mm x 188mm x 68mm
• Volume:
  • Front: 8.5 Liters (+89%)
  • Side: 3.2 Liters (+94%)
• Surface Area:
  • Front: 2660.5cm² (+46.4%)
  • Side: 473.8cm² (+14.9%)

Applications

• BMW M3: F80 | 2014-2018 | S55 3.0L I6 twin-turbo
• BMW M4: F83 | 2014-2020 | S55 3.0L I6 twin-turbo

Notes

• Installation Instructions

About Wagner Tuning

Wagner Tuning is a Germany-based performance engineering brand specializing in high-efficiency charge-air cooling and intake solutions for modern turbocharged vehicles. Known for its competition-proven intercoolers and precision-manufactured components, Wagner Tuning combines advanced R&D, CFD analysis, and rigorous testing to deliver measurable performance gains, improved thermal stability, and long-term reliability. With a strong focus on motorsport-inspired engineering and OEM-level fit and finish, Wagner Tuning products are designed to support both high-performance street driving and demanding track use across a wide range of European and international platforms.