{"product_id":"dinan-high-performance-heat-exchanger-for-bmw-16-20-3-series-and-2-series-f30-f31-f32-f33-f34-f36","title":"Dinan High Performance Heat Exchanger for BMW 16-20 3 Series and 2 Series F30\/F31\/F32\/F33\/F34\/F36","description":"The Dinan B4x\/B58 heat exchanger for the F2x\/F3x chassis assists in mitigating these issues with a more robust core (48mm thick Dinan core vs. 27mm thick OEM core) that wields 78% more heat transfer surface area for improved cooling capacity.  The significant increase in core thickness requires unique \"L\" shaped end tanks to be incorporated as well, which also contributes to the overall thermal mass (ability to absorb, store, and release heat) improvement beyond the OEM setup. With up to a 15\u0026amp;deg IAT delta recorded over stock the Dinan heat exchanger is ready, and able, to assist in extending your vehicles ability to deliver maximum performance time and time again for your driving enjoyment!\nF22\/F23\/F30\/F31\/F32\/F33\/F34\/F36\nDue to the enlarged core and unique \"L\" shaped endtanks minor modification to the plastic core stack shroud may be required with some factory configurations ( particularly those with the optional OEM hot climate heat exchanger). Consult the installation PDF for full documentation on what exactly that entails.\n\u003cul\u003e\n  \u003cli\u003eAverage of 8\u0026amp;deg reduction in IAT's with a maximum reduction of 15\u0026amp;deg over 15 successive WOT pulls\u003c\/li\u003e\n  \u003cli\u003eInstallation hardware included (inclusive of xDrive specific transmission oil cooler brackets)\u003c\/li\u003e\n  \u003cli\u003eReduces the tendency to heat soak \/ go in to limp mode\u003c\/li\u003e\n  \u003cli\u003e48mm thick Dinan cooler vs. 27mm thick stock cooler\u003c\/li\u003e\n  \u003cli\u003e78% more cooling surface area and volume than stock\u003c\/li\u003e\n  \u003cli\u003e100% TIG welded and pressure tested\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Dinan DNND780-0002 high performance heat exchanger is engineered to enhance the cooling efficiency of select BMW models from 2016 to 2020, including the 330i, 340i, and M240i series. Featuring a robust 48mm thick core, this heat exchanger offers a significant upgrade over the factory 27mm core, providing 78% more heat transfer surface area for improved thermal management. Its unique \"L\" shaped end tanks are designed to accommodate the increased core volume, ensuring optimal heat absorption and dissipation during demanding driving conditions. This advanced design results in an average of 8°F reduction in intake air temperatures (IATs), with peak improvements of up to 15°F over multiple WOT pulls, helping to prevent heat soak and reduce the likelihood of limp mode, thereby extending maximum performance duration. The unit is fully TIG welded and pressure tested to meet high standards of durability and reliability, with installation hardware included, including xDrive-specific transmission oil cooler brackets for seamless integration. The Dinan heat exchanger requires minor modifications to the plastic core stack shroud in some configurations, particularly those equipped with the OEM hot climate heat exchanger, and detailed installation instructions are provided for proper setup. This upgrade is essential for enthusiasts seeking to optimize engine cooling, especially during aggressive driving or track use, ensuring consistent power delivery and enhanced vehicle longevity. Please note that this product is not CARB approved and is intended for off-road use only. Trust Dinan’s reputation for performance engineering with this high-quality, reliable cooling solution designed specifically for your BMW's performance needs.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e48mm thick core for enhanced heat transfer\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003e78% more cooling surface area than stock\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eUnique \"L\" shaped end tanks for improved thermal mass\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eReduces intake air temperature by up to 15°F\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes installation hardware with xDrive transmission cooler brackets\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFully TIG welded and pressure tested for durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for high-performance driving and extended track use\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMinor modifications may be necessary for some factory configurations\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2016 BMW 340i Base\u003cbr\u003e\n2016 BMW 340i xDrive Base\u003cbr\u003e\n2017 BMW 230i Base\u003cbr\u003e\n2017 BMW 230i xDrive Base\u003cbr\u003e\n2017 BMW 330i Base\u003cbr\u003e\n2017 BMW 330i GT xDrive Base\u003cbr\u003e\n2017 BMW 330i xDrive Base\u003cbr\u003e\n2017 BMW 340i Base\u003cbr\u003e\n2017 BMW 340i GT xDrive Base\u003cbr\u003e\n2017 BMW 340i xDrive Base\u003cbr\u003e\n2017 BMW 430i Base\u003cbr\u003e\n2017 BMW 430i Gran Coupe Base\u003cbr\u003e\n2017 BMW 430i xDrive Base\u003cbr\u003e\n2017 BMW 430i xDrive Gran Coupe Base\u003cbr\u003e\n2017 BMW 440i Base\u003cbr\u003e\n2017 BMW 440i Gran Coupe Base\u003cbr\u003e\n2017 BMW 440i xDrive Base\u003cbr\u003e\n2017 BMW 440i xDrive Gran Coupe Base\u003cbr\u003e\n2017 BMW M240i Base\u003cbr\u003e\n2017 BMW M240i xDrive Base\u003cbr\u003e\n2018 BMW 230i Base\u003cbr\u003e\n2018 BMW 230i xDrive Base\u003cbr\u003e\n2018 BMW 330i Base\u003cbr\u003e\n2018 BMW 330i GT xDrive Base\u003cbr\u003e\n2018 BMW 330i xDrive Base\u003cbr\u003e\n2018 BMW 340i Base\u003cbr\u003e\n2018 BMW 340i GT xDrive Base\u003cbr\u003e\n2018 BMW 340i xDrive Base\u003cbr\u003e\n2018 BMW 430i Base\u003cbr\u003e\n2018 BMW 430i Gran Coupe Base\u003cbr\u003e\n2018 BMW 430i xDrive Base\u003cbr\u003e\n2018 BMW 430i xDrive Gran Coupe Base\u003cbr\u003e\n2018 BMW 440i Base\u003cbr\u003e\n2018 BMW 440i Gran Coupe Base\u003cbr\u003e\n2018 BMW 440i xDrive Base\u003cbr\u003e\n2018 BMW 440i xDrive Gran Coupe Base\u003cbr\u003e\n2018 BMW M240i Base\u003cbr\u003e\n2018 BMW M240i xDrive Base\u003cbr\u003e\n2019 BMW 230i Base\u003cbr\u003e\n2019 BMW 230i xDrive Base\u003cbr\u003e\n2019 BMW 330i GT xDrive Base\u003cbr\u003e\n2019 BMW 330i xDrive Base\u003cbr\u003e\n2019 BMW 340i GT xDrive Base\u003cbr\u003e\n2019 BMW 430i Base\u003cbr\u003e\n2019 BMW 430i Gran Coupe Base\u003cbr\u003e\n2019 BMW 430i xDrive Base\u003cbr\u003e\n2019 BMW 430i xDrive Gran Coupe Base\u003cbr\u003e\n2019 BMW 440i Base\u003cbr\u003e\n2019 BMW 440i Gran Coupe Base\u003cbr\u003e\n2019 BMW 440i xDrive Base\u003cbr\u003e\n2019 BMW 440i xDrive Gran Coupe Base\u003cbr\u003e\n2019 BMW M240i Base\u003cbr\u003e\n2019 BMW M240i xDrive Base\u003cbr\u003e\n2020 BMW 230i Base\u003cbr\u003e\n2020 BMW 230i xDrive Base\u003cbr\u003e\n2020 BMW 430i Base\u003cbr\u003e\n2020 BMW 430i Gran Coupe Base\u003cbr\u003e\n2020 BMW 430i xDrive Base\u003cbr\u003e\n2020 BMW 430i xDrive Gran Coupe Base\u003cbr\u003e\n2020 BMW 440i Base\u003cbr\u003e\n2020 BMW 440i Gran Coupe Base\u003cbr\u003e\n2020 BMW 440i xDrive Base\u003cbr\u003e\n2020 BMW 440i xDrive Gran Coupe Base\u003cbr\u003e\n2020 BMW M240i Base\u003cbr\u003e\n2020 BMW M240i xDrive Base\u003cbr\u003e\n2021 BMW 230i Base\u003cbr\u003e\n2021 BMW 230i xDrive Base\u003cbr\u003e\n2021 BMW M240i Base\u003cbr\u003e\n2021 BMW M240i xDrive Base\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; 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