Mk5 Supra Auxiliary Radiators (2)
Ships from the brand or distributor, usually in 3–7 business days
Make sure this fits your car
Fits: Gen 2 B58 (2019+ BMW G-series) and Toyota GR Supra A90/A91
- Shipping at real carrier rates
- 30-day returns on unused parts
- Fitment help before you buy
The A90 Supra and the G-series BMWs use two auxiliary radiators, one at each side, and they become a weak point once the car is driven hard or raced. CSF's upgraded side radiators add capacity and better airflow to help avoid limp mode and cool-down laps.
What you get
- 2-row, 42 mm core with 6.5 mm multi-louvered fins and CSF's B-tube design.
- All-aluminum, TIG-welded construction in a thermal black coating.
- Detachable aluminum rock guard to protect the core.
- CNC-machined brackets and OEM-style quick-connect fittings.
- 2-year limited warranty from CSF.
Good to know
- The radiator is a drop-in fit on either the left or right side, with no modifications needed.
Gen 2 B58 (2019+ BMW G-series) and Toyota GR Supra A90/A91
| Model | Chassis | Years | Engine | Fits |
|---|---|---|---|---|
| M140i | F20/F21 | 2016–2019 | Gen 1 B58 | |
| M240i | F22/F23 | 2016–2021 | Gen 1 B58 | |
| 340i | F30/F31/F34 | 2016–2019 | Gen 1 B58 | |
| 440i | F32/F33/F36 | 2017–2020 | Gen 1 B58 | |
| 540i | G30/G31 | 2017–2019 | Gen 1 B58 | |
| 740i | G11/G12 | 2016–2019 | Gen 1 B58 | |
| X3 M40i | G01 | 2018–2019 | Gen 1 B58 | |
| X4 M40i | G02 | 2019 | Gen 1 B58 | |
| 640i GT | G32 | 2018–2019 | Gen 1 B58 | |
| M340i | G20/G21 | 2019–2024 | Gen 2 B58 (TU) | |
| M440i | G22/G23/G26 | 2021–2024 | Gen 2 B58 (TU) | |
| M240i | G42 | 2022–2024 | Gen 2 B58 (TU) | |
| Z4 M40i | G29 | 2019+ | Gen 2 B58 (TU) | |
| GR Supra 3.0 | A90/A91 | 2020+ | Gen 2 B58 (TU) | |
| 540i | G30/G31 | 2020–2023 | Gen 2 B58 (TU) | |
| 740i | G11/G12 | 2020–2022 | Gen 2 B58 (TU) | |
| X3 M40i | G01 | 2020+ | Gen 2 B58 (TU) | |
| X4 M40i | G02 | 2020+ | Gen 2 B58 (TU) | |
| X5 xDrive40i | G05 | 2019–2023 | Gen 2 B58 (TU) | |
| X6 xDrive40i | G06 | 2020–2023 | Gen 2 B58 (TU) | |
| X7 xDrive40i | G07 | 2019–2022 | Gen 2 B58 (TU) | |
| 840i | G14/G15/G16 | 2019+ | Gen 2 B58 (TU) | |
| INEOS Grenadier | Station Wagon/Quartermaster | 2023+ | Gen 2 B58 (TU) | |
| M340i | G20/G21 | 2025+ | Gen 3 B58 (48V) | |
| M440i | G22/G23/G26 | 2025+ | Gen 3 B58 (48V) | |
| M240i | G42 | 2025+ | Gen 3 B58 (48V) |
Not sure? Email sales@b58racing.com with your VIN.
- Ships from the brand or distributor, usually in 3–7 business days.
- Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
- Unused parts can be returned within 30 days. Some items are marked no-refund in their description.
Full details are on our shipping and returns page.
Guides for this part
B58 Charge Pipe Install: Gen 1 F-Chassis vs Gen 2 G-Chassis and the GR Supra
The B58 charge pipe runs from the turbo outlet to the throttle body. Swapping it is a top-side job on most cars: pull the intake, unclip the pipe from the turbo, unbolt it from the throttle body, move the sensors and O-r
B58 Intercooler Install: Heat Exchanger Upgrade for Gen 1 F-Series, Gen 2 G-Series and the GR Supra
Every B58 uses an air-to-water intercooler. That includes the Gen 1 F-series BMWs, the Gen 2 G-series BMWs and the GR Supra. The intercooler itself sits inside the intake manifold, and a small radiator up front, called t
Best A90 Supra Mods, In the Order to Do Them (GR Supra 3.0)
Tune it first. On a GR Supra 3.0, a flash tune or a JB4 is the biggest gain per dollar. Next, add a downpipe and a Stage 2 map, and a better heat exchanger so the car stays strong on hot days. After that comes fuel: flex
Pairs well with
Gen 2 - B58 Intake Manifold by CSF Radiators
G Series/Supra High Performance Heat Exchanger
CTS Turbo Auxiliary Radiator - G20/G29/A90 (x2 required)
