Wagner Tuning BMW M3/M4 F80/82/83 Radiator Kit

By Wagner Tuning
£1,999.00

The Wagner Tuning Radiator Kit for the BMW M3 and M4 (F80/F82/F83) is a complete cooling upgrade designed to stabilise engine temperatures and improve reliability on the S55 platform.
Consisting of high-efficiency radiator units built with motorsport-grade cores, this kit provides a significant improvement over the factory cooling system — particularly for tuned, track-driven or high-ambient-temperature applications.

Whether you're running Stage 1/2 software, hybrid turbos or enjoy regular spirited driving, the Wagner radiator kit ensures more consistent coolant performance and reduced thermal stress on your S55 engine.

Key Features

  • High-efficiency aluminium radiator cores

  • Improved coolant flow and temperature stability

  • CAD-optimised fin density for maximum thermal performance

  • TIG-welded for strength and long-term durability

  • Direct-fit replacement using OEM mounting points

  • Supports stock, Stage 1, Stage 2 and hybrid turbo power levels

  • Ideal for track, drift and fast-road builds

  • Significantly improves cooling system resilience under load

Compatibility

BMW M3 / M4 – S55 Engine

  • F80 M3

  • F82 M4

  • F83 M4 Convertible

(Not suitable for S55-powered M2 Competition — use the dedicated F87 kit.)

Ideal For

  • Tuned S55 engines running increased boost

  • Cars used for track days, drift sessions or high-speed touring

  • Owners experiencing rising coolant temps during spirited driving

  • M3/M4 builds with upgraded turbos or increased power targets

  • Drivers wanting improved cooling stability and long-term reliability

Why Choose the Wagner Tuning Radiator Kit

The factory cooling system on S55-powered M cars struggles under sustained heat, especially once tuned. Wagner’s radiator kit upgrades the system with a more robust, efficient cooling solution that reduces temperature spikes and helps the engine maintain consistent performance.

Benefits include:

  • Better thermal stability during extended hard use

  • Reduced risk of coolant temperature creep

  • Increased engine reliability during track or high-load driving

  • Perfect synergy when paired with Wagner’s charge cooler or intercooler upgrades

With precision fitment, premium construction and proven performance, the Wagner Radiator Kit is one of the most effective cooling upgrades available for F80/F82/F83 M cars.

Installing / Notes

  • Direct OEM-fit components

  • Professional installation recommended

  • Cooling system bleed required after installation

  • Compatible with stock or upgraded charge-cooling systems

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