Description
Unlock the full potential of your BMW’s turbocharged engine with the Forge Motorsport PolarCooler Chargecooler Radiator, specifically engineered for B48 and B58-powered models. Designed to combat the heat-soak and performance loss often associated with tuned engines and spirited driving, this advanced auxiliary cooling system delivers unmatched thermal efficiency and power retention under extreme conditions.
Through extensive development and testing, Forge Motorsport evaluated multiple water core designs and fin pitch configurations to create a chargecooler that offers over 100% increased fluid capacity, triple-pass coolant routing, and a significant reduction in intake temperatures by up to 20°C (68°F). This ensures sustained performance, consistent power delivery, and optimal combustion even during high-load, high-temperature situations.
Proudly designed, developed, and manufactured in the UK, this system replaces the OEM chargecooler and fits directly into the factory location with no cutting or permanent modification required. Its increased volume—17 liters compared to the OEM’s 7.71 liters—and larger core dimensions (530mm x 471mm x 68mm) versus stock (576mm x 495mm x 25mm) mean vastly improved cooling performance and heat dissipation.
Key Features:
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Designed for BMW B48 & B58 turbocharged engines
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Over 100% increased fluid capacity: 17L vs. OEM 7.71L
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Triple-pass water flow for superior heat exchange
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20°C (68°F) drop in inlet temps during repeated dyno pulls
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Improved charged air cooling performance for tuned vehicles
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Retains OEM location – no cutting or fabrication required
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CNC-machined fittings and durable construction for long life
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Made in the UK with a Forge Motorsport Worldwide Lifetime Warranty
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Installation time: approx. 4 hours
Vehicle Fitment:
BMW B48/B58 Models
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220i (2016–2024) – Base, Convertible, Coupe, M Sport (2.0L)
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230i (2017–2024) – Base (2.0L)
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340i (2016–2018) – Base, M Sport, xDrive (3.0L)
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M240i (2017–2021) – Base, M Performance Edition, xDrive (3.0L)
