Wagner Tuning S55 Front Mount Radiator for BMW F87 M2 Competition, F80 M3 & F82 M4

The Wagner Tuning S55 Front Mount Radiator is a high-performance cooling upgrade engineered for BMW’s M2, M3 and M4 models running the S55 engine.
Designed to improve coolant efficiency and stabilise engine temperatures under sustained load, this radiator is a direct-fit replacement for the factory unit and is particularly beneficial for tuned, track-driven or high-boost S55 applications.

With increased core volume, optimised fin density and motorsport-grade construction, the Wagner front radiator strengthens the S55 cooling system and helps prevent the heat-related power fade common on hard-driven M cars.

Key Features

• Larger, higher-efficiency cooling core

• Reduced coolant temperatures for improved reliability

• Optimised fin structure for maximum thermal efficiency

• TIG-welded aluminium construction

• Direct bolt-on replacement using OEM mounting points

• Improved performance during track sessions and spirited driving

• Designed for both stock and tuned S55 engines

• Ideal supporting mod for hybrid turbo and Stage 2+ setups

Compatibility

BMW M2 / M3 / M4 – S55 Engine

• F87 M2 Competition

• F87 M2 CS

• F80 M3

• F82 / F83 M4 & M4 Convertible

(Not compatible with N55-powered M2 models; for those use the dedicated F87 N55 cooling upgrades.)

Ideal For

• Track and fast-road S55 builds

• Tuned cars running higher boost or hybrid turbos

• Drivers experiencing coolant temperature creep during spirited use

• M2C/M3/M4 owners wanting improved engine reliability and consistency

• Cars used for repeated hard acceleration, drift days or high-ambient climates

Why Choose the Wagner Tuning S55 Front Mount Radiator

The S55 engine produces considerable heat — especially once tuned — and the factory radiator can struggle under extended load. Wagner’s upgraded front radiator significantly improves overall cooling efficiency, helping stabilise coolant temperatures and reduce thermal stress on the engine.

This upgrade offers:

• Better temperature control during long pulls or track sessions

• Improved reliability for tuned and high-power setups

• Durable all-aluminium construction built to handle repeated heat cycles

Wagner’s precise engineering and proven track performance make this radiator one of the most effective cooling enhancements available for S55-powered M cars.

Installing / Notes

• Direct OEM-fit installation

• Professional fitting recommended

• Works seamlessly with OEM or upgraded intercoolers & charge-coolers

• Bleeding the cooling system post-installation is essential