Dinan D780-0002 Performance Heat Exchanger for Select 2016-2021 BMW 230i, 330i, 340i, 430i, 440i, and M240i

Fits select 2016-2021 BMW 230i, M240i, 330i, 340i, 430i, and 440i (including xDrive, GT, and Gran Coupe models).

The Dinan D780-0002 Performance Heat Exchanger is engineered to solve cooling limitations on the F2x and F3x chassis equipped with B4x and B58 engines. By replacing the thin factory unit with a substantially more robust 48mm core, this exchanger increases thermal mass and cooling capacity, allowing your vehicle to maintain maximum performance during spirited driving or track use. The design features unique "L" shaped end tanks to accommodate the massive 78% increase in core thickness while maintaining a direct fit in the factory location.

• Reduces intake air temperatures (IAT) by an average of 8°F, with maximum recorded drops of 15°F over 15 successive pulls
• 48mm thick Dinan core provides a significant upgrade over the 27mm OEM unit
• 78% more cooling surface area and volume compared to stock equipment
• 100% TIG-welded construction for maximum durability and pressure-tested for reliability
• Reduces the likelihood of heat soak and the resulting ECU-triggered limp modes
• Includes all necessary installation hardware, including xDrive-specific transmission oil cooler brackets
• Manufacturer Part Number: D780-0002