Dinan High Performance Heat Exchanger for BMW G20/G22/G26/G42 and Toyota GR Supra 19-26

The OE thermal management system for the B4x/B58 G-chassis BMW and Toyota GR Supra offers an improved formula from prior generations. With a setup where engine coolant is also re-routed through the heat exchanger, the system effectively assists in overall engine cooling as well as charge cooling. However, like its predecessors, it has room for improvement as it can be overwhelmed when the system is taxed aggressively or as power levels are increased. Once overburdened, this results in the undesirable outcome of power being diminished. Avoidance of this unwelcome scenario can be attained though with a Dinan heat exchanger that improves the overall thermal management system so everything runs cooler and more efficiently while being budget friendly. G20/G22/G23/G26/G29/G42/A90/A91

• Average of 8.7º C reduction in charge air temps with a maximum reduction of nearly 12º C over 30 successive WOT pulls
• General improvement to the efficiency of the thermal management system, inclusive of engine cooling
• Durable bar and plate design that is less susceptible to damage from road debris
• 45mm thick Dinan core vs. 26.75mm thick stock cooler core
• Pressure tested, 100% TIG welded, Aluminum construction
• Reduces the tendency to heat soak / go in to limp mode
• Direct fit replacement with no modifications required
• 68% more cooling surface area and volume than stock

Upgrade your vehicle's thermal management system with the Dinan High Performance Heat Exchanger, designed specifically for BMW G20, G22, G26, G42 models, and the 2020 Toyota GR Supra. This direct-fit replacement enhances engine cooling and charge air temperature regulation, ensuring your vehicle runs cooler and more efficiently under demanding conditions. The advanced design reroutes engine coolant through a larger, more efficient heat exchanger, which significantly lowers charge air temps by an average of 8.7°F and can reduce temps by nearly 12°F during high-stress driving scenarios. This improvement helps prevent heat soak and limp mode, especially during aggressive driving or increased power outputs, maintaining optimal performance across extended periods of high load.
Dinan’s core features a robust bar and plate construction that is less vulnerable to damage from road debris, providing durability and long-lasting performance. The core's thickness is increased from the stock 26.75mm to 45mm, offering 68% more surface area and volume for superior heat dissipation. Constructed from high-quality aluminum, it is pressure tested and 100% TIG welded to ensure integrity and reliability. The design incorporates a larger cooling surface which significantly improves overall thermal efficiency, making it a cost-effective upgrade for enthusiasts seeking to enhance their vehicle's thermal management without extensive modifications. Installing this heat exchanger is straightforward, with a precise fit that requires no additional modifications, making it ideal for quick upgrades.
Whether you are aiming to boost performance, extend engine life, or improve cooling efficiency, the Dinan Heat Exchanger is an essential component for high-performance BMW and Toyota GR Supra models. It is engineered to withstand demanding driving conditions and provide consistent, reliable cooling performance, helping your vehicle maintain peak power and efficiency during track days, spirited driving, or daily use.

Features:

• Average of 8.7º F reduction in charge air temps with a maximum reduction of nearly 12º F over 30 successive WOT pulls

• Enhances overall thermal management and engine cooling efficiency

• Durable bar and plate design resistant to damage from road debris

• 45mm thick core offering 68% more cooling surface area than stock

• Pressure tested and 100% TIG welded aluminum construction for durability

• Reduces heat soak and prevents limp mode during high-stress driving

• Direct fit replacement with no modifications required

• Improved heat dissipation for sustained high performance

Fitments:
2019 BMW 330i Base
2019 BMW 330i xDrive Base
2019 BMW Z4 sDrive30i
2020 BMW 330i Base
2020 BMW 330i xDrive Base
2020 BMW M340i Base
2020 BMW M340i xDrive Base
2020 BMW Z4 sDrive M40i
2020 BMW Z4 sDrive30i
2020 Toyota GR Supra Base
2020 Toyota GR Supra Premium
2021 BMW 330i Base
2021 BMW 330i xDrive Base
2021 BMW 430i Base
2021 BMW 430i xDrive Base
2021 BMW M340i Base
2021 BMW M340i xDrive Base
2021 BMW M440i Base
2021 BMW M440i xDrive Base
2021 BMW Z4 sDrive M40i
2021 BMW Z4 sDrive30i
2021 Toyota GR Supra A91 Edition
2021 Toyota GR Supra Base
2021 Toyota GR Supra Premium
2022 BMW 230i Base
2022 BMW 330i Base
2022 BMW 330i xDrive Base
2022 BMW 430i Base
2022 BMW 430i Gran Coupe Base
2022 BMW 430i xDrive Base
2022 BMW M240i xDrive Base
2022 BMW M340i Base
2022 BMW M340i xDrive Base
2022 BMW M440i Base
2022 BMW M440i Gran Coupe Base
2022 BMW M440i xDrive Base
2022 BMW M440i xDrive Gran Coupe Base
2022 BMW Z4 M40i
2022 BMW Z4 sDrive30i
2022 Toyota GR Supra A91 Edition
2022 Toyota GR Supra Base
2022 Toyota GR Supra Premium
2023 BMW 230i Base
2023 BMW 230i xDrive Base
2023 BMW 330i Base
2023 BMW 330i xDrive Base
2023 BMW 430i Base
2023 BMW 430i Gran Coupe Base
2023 BMW 430i xDrive Base
2023 BMW 430i xDrive Gran Coupe Base
2023 BMW M240i Base
2023 BMW M240i xDrive Base
2023 BMW M340i Base
2023 BMW M340i xDrive Base
2023 BMW M440i Base
2023 BMW M440i Gran Coupe Base
2023 BMW M440i xDrive Base
2023 BMW M440i xDrive Gran Coupe Base
2023 BMW Z4 M40i
2023 BMW Z4 sDrive30i
2023 Toyota GR Supra Base
2023 Toyota GR Supra Premium
2024 BMW 230i Base
2024 BMW 230i xDrive Base
2024 BMW 330i Base
2024 BMW 330i xDrive Base
2024 BMW 430i Base
2024 BMW 430i Gran Coupe Base
2024 BMW 430i xDrive Base
2024 BMW 430i xDrive Gran Coupe Base
2024 BMW M240i Base
2024 BMW M240i xDrive Base
2024 BMW M340i Base
2024 BMW M340i xDrive Base
2024 BMW M440i Base
2024 BMW M440i Gran Coupe Base
2024 BMW M440i xDrive Base
2024 BMW M440i xDrive Gran Coupe Base
2024 BMW Z4 M40i
2024 BMW Z4 sDrive30i
2024 Toyota GR Supra Base
2024 Toyota GR Supra Premium
2025 BMW 230i Base
2025 BMW 230i xDrive Base
2025 BMW 330i Base
2025 BMW 330i xDrive Base
2025 BMW 430i Base
2025 BMW 430i Gran Coupe Base
2025 BMW 430i xDrive Base
2025 BMW 430i xDrive Gran Coupe Base
2025 BMW M240i Base
2025 BMW M240i xDrive Base
2025 BMW M340i Base
2025 BMW M340i xDrive Base
2025 BMW M440i Base
2025 BMW M440i Gran Coupe Base
2025 BMW M440i xDrive Base
2025 BMW M440i xDrive Gran Coupe Base
2025 BMW Z4 M40i
2025 BMW Z4 sDrive30i
2025 Toyota GR Supra Base
2025 Toyota GR Supra Premium
2026 BMW 230i Base
2026 BMW 230i xDrive Base
2026 BMW 330i Base
2026 BMW 330i xDrive Base
2026 BMW 430i Base
2026 BMW 430i Gran Coupe Base
2026 BMW 430i xDrive Base
2026 BMW 430i xDrive Gran Coupe Base
2026 BMW M240i Base
2026 BMW M240i xDrive Base
2026 BMW M340i Base
2026 BMW M340i xDrive Base
2026 BMW M440i Base
2026 BMW M440i Gran Coupe Base
2026 BMW M440i xDrive Base
2026 BMW M440i xDrive Gran Coupe Base
2026 BMW Z4 M40i
2026 BMW Z4 sDrive30i
2026 Toyota GR Supra Base
2026 Toyota GR Supra Premium

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Units Per Sku: 1
Regular Stock: t