Uprated water-to-air cooler for BMW B58 power and consistency
Unlock reliable performance from your B58-powered BMW with the AIRTEC Motorsport front mounted heat exchanger upgrade. Built for hard road use and track sessions, this oversized auxiliary radiator stabilises intake air temperatures, combats heat soak and keeps your straight-six pulling strong run after run on factory calibration, Stage 1 and Stage 2 software.
We have installed and used this cooler at MJ Modifications and customer feedback has been outstanding. Expect noticeably cooler charge temps, punchier mid-range and repeatable performance even on back-to-back pulls. It is a proper bolt-on, uses the original mounting points and connectors, and delivers a big step forward in thermal control for the B58 engine.
Why this upgrade works
- Three-pass flow route for maximum heat rejection and excellent efficiency under sustained load
- Huge 90 mm thick core increases coolant volume from 7.7 litres to 23.3 litres, a 203 percent gain
- Direct fitment with factory brackets and quick-release couplings, no cutting or trimming required
- Includes a robust stone guard to protect the fins from road debris
- Tough powder coated black finish for an OEM-plus look
Dimensions and capacity
Stock cooler
- Width 576 mm
- Height 495 mm
- Depth 27 mm
- Volume 7.7 litres
AIRTEC Motorsport unit
- Width 550 mm
- Height 470 mm
- Depth 90 mm
- Volume 23.3 litres
Vehicle compatibility
Engineered for BMW F-series models using the B58 cooling layout:
- 2015 to 2019 120i, 125i, M140i F20 F21 LCI
- 2016 to 2019 220i, 230i, M240i F22 F23 LCI
- 2014 to 2019 320i, 330i, 340i F30 F31 F34 F35 LCI
- 2016 to 2019 420i, 430i, 440i F32 F33 F36 LCI
What is included
- AIRTEC Motorsport front mounted cooler
- Protective grille panel
- Fittings and hardware pack
- Installation guide
Professional installation
We recommend fitting at MJ Modifications, Warwickshire. For a quote or to book, email info@mjmodifications.co.uk.
Part number
ATRADBMW2
Why buy from us
Trusted by enthusiasts and tuners, this uprated heat exchanger is a proven way to reduce IAT, improve repeatability on spirited drives and track days, and support tuned B58 cars without compromising drivability. It is plug and play, durable and designed for real-world performance.
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