B58/B48 F series Uprated Charge cooler

BMW F-series B58 and B48 Heat Exchanger Upgrade for Superior Cooling and Consistent Power

Give your turbocharged BMW the cooling headroom it deserves with this enlarged auxiliary heat exchanger for the B58 and B48 low temperature circuit. Built to outclass the factory unit, it delivers a massive 110% increase in capacity over stock, helping to control charge temperatures and protect performance during spirited driving, fast road use and track days.

Why upgrade your F-series cooling system

• 110% more coolant volume vs the standard radiator helps curb heat soak and stabilise intake air temperatures under sustained load.
• Improves thermal efficiency for tuned and remapped cars, supporting Stage 1 and Stage 2 power levels with more reliable, repeatable performance.
• Excellent for hot weather, repeated pulls and endurance use where the OE setup struggles to keep IATs in check.
• Stealth high gloss black finish for an OEM+ look behind the grille.

Real-world results from our workshop

We have fitted this to customer B58 and B48 F-series builds and the feedback has been outstanding. Lower peak temperatures, faster recovery between pulls and far more consistent power delivery. Exactly what you want from a serious cooling upgrade on a turbo BMW.

Ideal for

• BMW F-series with B58 or B48 engines using a water-to-air chargecooling system.
• Fast road, track days and daily-driven performance cars seeking stronger heat management.
• Cars running higher boost, remaps, or supporting hardware where the standard heat exchanger is a known bottleneck.

Professional fitting available

Want it installed properly the first time Our team at MJ Modifications in Warwickshire can supply and fit. Request a quote at info@mjmodifications.co.uk.

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