Wagner Tuning Radiator Kit for G8x BMW M2 / M3 / M4

The Wagner Tuning Radiator Kit for the G8x BMW M2, M3, and M4 is built for drivers who want to keep their S58-powered BMW performing at its best, even under heavy use. Designed as a competition-grade front water cooler upgrade, it increases cooling volume by 60% to help lower coolant temperatures and keep engine heat under control during aggressive street driving or track sessions. The result is more consistent performance, improved reliability, and greater confidence when pushing the car hard. Now offered with parts certification, this radiator kit delivers serious cooling performance with the reassurance of road-approved compliance.

Why the Wagner Tuning Radiator is the Best Choice for Your S58

• Wagner Tuning engineers this competition-grade front water cooler to deliver a substantial 60% increase in cooling volume over the factory unit, expanding capacity from 9.16 liters to 14.67 liters for significantly improved thermal control. Designed specifically for the BMW S58 engine, the upgraded core lowers coolant temperatures within the indirect intercooler circuit, helping stabilize system thermodynamics and maintain consistent performance under aggressive driving. The increased installation depth optimizes the balance between internal and external cooling surface area, ensuring efficient heat transfer without compromising airflow. Finished with a heat-conductive, anti-corrosion coating for long-term reliability, the system is built to perform in demanding conditions. Supplied with parts certification for straightforward registration and designed for true plug-and-play installation, this Wagner Tuning radiator upgrade effectively addresses the cooling limitations of high-output S58 models, helping sustain performance in 480hp to 550hp applications.

Features

• Competition-grade racing intercooler core design
• 60% increase in cooling volume
• Reduced coolant temperatures in the indirect intercooler (low-temperature) circuit
• Improved thermal stability under aggressive driving and track use
• Optimized internal-to-external cooling surface ratio
• Heat-conductive, anti-corrosion surface coating
• Supports high-output applications from 480hp to 550hp
• Supplied with parts certification for legal use and easy registration
• Plug-and-play installation with detailed instructions
• Made in Germany

Specifications

• Dimensions: 505mm x 605mm x 48mm
• Volume: 14.67 liters (+60% vs OEM)
• Surface Area: 3055cm²

Applications

• BMW M2: G87 | 2023-present | S58 3.0L I6 twin-turbo
• BMW M3: G80, G81 | 2021-present | S58 3.0L I6 twin-turbo
• BMW M3 Competition: G80, G81 | 2021-present | S58 3.0L I6 twin-turbo
• BMW M4: G82, G83 | 2021-present | S58 3.0L I6 twin-turbo
• BMW M4 Competition: G82, G83 | 2021-present | S58 3.0L I6 twin-turbo
• BMW M4 CSL: G82 | 2022 | S58 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.