CSF Street Front Mount Heat Exchanger (FMHE) – Charge Cooler / Intercooler Water Radiator Upgrade for BMW M3/M4 F80 F82 F83 (F8X) S55 – Low Temp Radiator, Two-Pass 42mm Dual Core, OEM Plug & Play

Unlock cooler, more consistent performance from your S55-powered F80 F82 F83 with this genuine CSF street-spec charge cooler radiator upgrade. Engineered as a direct replacement for the factory water to air intercooler radiator, it delivers serious thermal headroom for fast road, daily driving and track days, helping to control intake temps, fight heat soak and sustain power on both stock and remapped cars.

Why enthusiasts choose this cooling upgrade:

• High-capacity 42 mm thick dual core using CSF’s exclusive B-tube technology for superior heat rejection
• High-density multi louvre fin pack maximises surface area and airflow efficiency
• Two-pass coolant routing pushes fluid across the core twice to extract more heat
• 45-row layout packaged for perfect OEM-style fitment
• CNC-machined quick-connect hose fittings match factory lines for true plug and play installation
• CNC billet mounting brackets and fittings provide robust alignment and long-term durability
• Removable aluminium rock guard mesh protects the core from road debris
• Race-grade aluminium drain plug for clean, simple servicing
• Hand polished finish for a premium under-bumper look
• Backed by a lifetime warranty for peace of mind

Real-world benefits:

• Improved thermal stability during back-to-back pulls, spirited driving and circuit use
• Helps reduce heat soak on tuned S55 setups, ideal for Stage 1 and Stage 2 maps
• Keeps intake temperatures more consistent for reliable performance
• Direct bolt-on fit with OEM connectors and mounting points

We use this cooler on customer cars and in our own builds at MJ Modifications. Feedback has been consistently positive, with owners praising the fit, finish and the way it controls temperatures on hard-driven F80 F82 F83 platforms.

Professional installation available: for fitting at MJ Modifications in Warwickshire, request a quote at info@mjmodifications.co.uk.

Search-friendly fitment and use cases:

• BMW F80 F82 F83 with the 3.0 twin turbo S55 engine
• Charge cooler radiator upgrade for water to air intercooler systems
• Auxiliary radiator for cooling system enhancement on road and track
• Direct replacement intercooler water radiator with OEM quick connects

If you are chasing cooler intake temps, greater consistency on hot days and reliable performance from your S55, this CSF charge cooler radiator is the smart, bolt-on solution.