BMW M240i High Performance Heat Exchanger - Dinan - 2022–2026. Direct-fit upgrade that stabilizes charge temps for consistent performance on your G42 M240i.

The factory B58 system routes engine coolant through the charge cooler; under heavy use or added power it can be overtaxed. Dinan answers with a 45mm core (26.75mm OEM) and full-size end tanks, yielding 68% more heat-transfer area and greater thermal mass. Its bar-and-plate, all-aluminum, 100% TIG-welded construction is built for durability. Testing shows an average 8.7°C drop in charge temps, with up to nearly 12°C over 30 successive WOT pulls, aiding charge and overall engine cooling efficiency.

Features

• Fitment: 2022–2026 BMW M240i (G42)
• 45mm Dinan core vs. 26.75mm stock
• Approximately 68% more cooling surface area and volume
• Bar-and-plate, 100% TIG-welded, pressure-tested aluminum
• Direct fit; no modifications required; helps reduce heat soak/limp-mode tendency

Questions or planning an install? Call our Austin, TX shop at 512-982-9393 or our Los Angeles, CA area shop at 562-981-6800. We offer professional installation and customization at both locations and can help tailor your build.

Purchasing multiple items? Contact us for potential shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov