One of the most apparent problems for the 2nd gen B58 Motor is the liquid-cooled charge air cooler system quickly heat soaks with no ability to recover. This would cause the intake air temperatures (IATs) to spike, resulting in the ECU cutting the power output of the vehicle, and eventually putting the car into limp mode. CSF engineers witnessed the overheating issue first-hand as they were in attendance at the Global Time Attack Finals at Buttonwillow Raceway in November 2019. Several new heavily modified Supra racecars could barely go two or three laps in moderate ambient conditions without having the car go into limp mode, forcing drivers to take a cool down lap (or two), with some even coming into the pits to have their front mount heat exchangers sprayed down with cold water.

CSF's B58 high-performance heat exchanger will be a critical component to keeping your Supra/BMW's charge air cool, and out of limp mode. The upgraded heat exchanger is especially important when upgrading turbos and/or running performance tuning software. The original 2nd Gen B58 heat exchanger is a 1-row unit that is 25mm thick. In comparison, CSF has used its industry-exclusive world's largest 2-row core (68mm) with CSF's B-Tube technology. A unique tank design allows the larger CSF core to still fit into the OEM cooling system housing. The CSF improved design, includes billet transmission cooler mounts, and metal rock guard with improved airflow characteristics. CSF is the only company to include a rock guard and incorporate OEM transmission cooler mounting points for a true plug-and-play "drop-in" fit.

Features

• Significantly Reduces Intake Air Temperature (IAT) for Maximum Performance (with Faster Heat Soak Recovery)
• Improves Air Flow to the Rest of the Cooling System for Both Lower Engine Coolant and Engine Oil Temperatures
• 2-Row, 42mm Ultra High Performance Core & 6.5mm Tall Multi-Louvered Fin with CSF's Exclusive B-Tube Technology
• CNC Machined Mounting Brackets and OEM Style "Quick Connect" Inlet/Outlet
• 100% All Aluminum TIG-Welded Construction
• Includes Rock Guard & Transmission Oil Cooler Mounting Kit (Industry Exclusive)
• "Drop-in" Fit
• 2-Year Limited Warranty
• Smooth Satin Finish
• Tested and Proven by CSF's Global Network of R&D Partners, Including Leading Time Attack Teams, Tuners, and Turbo Kit Manufacturers

Applications

• 2019-2022 BMW G20 330i - Turbocharged 2.0L L4
• 2019-2022 BMW G20 330i xDrive - Turbocharged 2.0L L4
• 2021-2022 BMW G22 430i - Turbocharged 2.0L L4
• 2021-2022 BMW G23 430i - Turbocharged 2.0L L4
• 2024+ BMW 430i - 1.5L L4
• 2022+ BMW G26 430i Gran Coupe - Turbocharged 2.0L L4
• 2024+ BMW 430i Gran Coupe - 1.5L L4
• 2021-2022 BMW G22 430i xDrive - Turbocharged 2.0L L4
• 2022+ BMW G23 430i xDrive - Turbocharged 2.0L L4
• 2024+ BMW 430i xDrive - 1.5L L4
• 2023+ BMW G26 430i xDrive Gran Coupe - Turbocharged 2.0L L4
• 2024+ BMW 430i xDrive Gran Coupe - 1.5L L4
• 2023+ BMW G42 M240i - Turbocharged 3.0L L6
• 2023+ BMW M240i - Turbocharged 3.0L L6
• 2022+ BMW G42 M240i xDrive - Turbocharged 3.0L L6
• 2022+ BMW M240i xDrive - Turbocharged 3.0L L6
• 2020-2022 BMW G20 M340i - Turbocharged 3.0L L6
• 2020-2024 BMW M340i - Turbocharged 3.0L L6
• 2020-2022 BMW G20 M340i xDrive - Turbocharged 3.0L L6
• 2020-2024 BMW M340i xDrive - Turbocharged 3.0L L6
• 2021-2024 BMW M440i - Turbocharged 3.0L L6
• 2022+ BMW G22 M440i - Turbocharged 3.0L L6
• 2022+ BMW G23 M440i - Turbocharged 3.0L L6
• 2024+ BMW M440i Gran Coupe - Turbocharged 3.0L L6
• 2021-2024 BMW M440i xDrive - Turbocharged 3.0L L6
• 2022+ BMW G22 M440i xDrive - Turbocharged 3.0L L6
• 2022+ BMW G23 M440i xDrive - Turbocharged 3.0L L6
• 2022+ BMW G26 M440i xDrive Gran Coupe - Turbocharged 3.0L L6
• 2022+ BMW M440i xDrive Gran Coupe - Turbocharged 3.0L L6
• 2019-2022 BMW G29 Z4 - Turbocharged 2.0L L4
• 2019-2022 BMW G29 Z4 - Turbocharged 3.0L L6
• 2024+ Toyota GR Supra 45th Anniversary Edition - 3.0L L6
• 2023+ Toyota GR Supra A91-MT Edition - 3.0L L6
• 2023+ Toyota GR Supra Premium - 3.0L L6
• 2024+ Toyota GR Supra Premium 45th Anniversary Edition - 3.0L L6
• 2020-2022 Toyota GR Supra - Turbocharged 3.0L L6
• 2021-2022 Toyota GR Supra - Turbocharged 2.0L L4
• 2020-2024 Toyota GR Supra - 3.0L L6

OEM Part Numbers

• BMW: 17 11 8 666 811 *M240i Yes
• BMW: 17-11-8-666-811 *M240i Yes
• BMW: 17118666811 *M240i Yes
• Toyota: 16400 WAA03
• Toyota: 16400-WAA03
• Toyota: 16400WAA03