Performance M
Forge Motorsport PolarCooler Charge Cooler Radiator for BMW M3 F80 & M4 F82/F83 (F8X S55) Uprated Auxiliary Intercooler Radiator, Direct Fit Performance Cooling Upgrade, Black (545x460x32mm)
Forge Motorsport PolarCooler Charge Cooler Radiator for BMW M3 F80 & M4 F82/F83 (F8X S55) Uprated Auxiliary Intercooler Radiator, Direct Fit Performance Cooling Upgrade, Black (545x460x32mm)
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Forge PolarCooler Uprated Heat Exchanger for BMW M3 M4 F8X
Keep intake temps under control and power consistent on your S55-powered BMW. This Forge PolarCooler auxiliary water radiator is a straight-swap upgrade for the factory secondary cooler on the F80 M3 and F82 F83 M4, delivering dependable charge temperature management for fast road, dyno sessions and track use.
Why this cooling upgrade makes a difference
- Enlarged core for greater thermal efficiency and faster heat rejection
- Core size 545 x 460 x 32 mm
- Approximate 1.7 litre coolant capacity for improved thermal stability
- Durable black powder-coated finish for an OEM-plus, stealth look
- CNC machined connections for a precise seal and long-term reliability
- Integrated bleed point to simplify servicing
- Direct replacement using factory mounts and hoses with no cutting or trimming
Real-world benefits
Reduced heat soak, steadier IATs and repeatable performance pull after pull. We have fitted and run this hardware on our own builds and customer cars and feedback has been excellent, especially on tuned vehicles and during back-to-back acceleration or extended circuit sessions.
Best for
- BMW M3 F80 and BMW M4 F82 F83 owners seeking stronger charge temperature control
- Stage 1 and Stage 2 tuned cars where intake temps climb quickly
- Track days, spirited B-road driving and daily use in warm conditions
Compatibility
Fits BMW M3 F80 and BMW M4 F82 F83 with the S55 water-to-air charge cooling system. F8X platform only. If you are unsure about suitability, contact our team and we will be happy to help.
Pair for maximum effect
Works as a standalone enhancement or alongside the Forge chargecooler and expansion tank kit, Part Number: FMCC1, for a comprehensive cooling package.
Fitting and support
Professional installation recommended. MJ Modifications offers fitting at our Warwickshire workshop. Request a quote at info@mjmodifications.co.uk.
Search-friendly terms customers use
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