CSF BMW Z4/Toyota Supra High Performance Aux Cooler (G29/A90)
AVAILABLE TO ORDER | IN STOCK WITH SUPPLIER
Choose options
AVAILABLE TO ORDER | IN STOCK WITH SUPPLIER
AVAILABLE TO ORDER | IN STOCK WITH SUPPLIER
When it comes to high-performance cooling, don’t settle for aftermarket options that reuse the OEM plastic rock guard. The OEM rock guard is designed for the original radiator core and can block airflow when paired with aftermarket radiators, reducing cooling efficiency. CSF went beyond industry norms, redesigning its included detachable aluminium rock guard to maximize airflow while providing excellent protection against rocks and debris. Proven in CSF’s in-house wind tunnel, this upgraded design ensures optimal cooling performance without compromise.
The CSF Auxiliary Radiator fits seamlessly on both the left and right sides of the vehicle with a true plug-and-play installation. Featuring CNC-machined mounting brackets and OEM-style “Quick Connect” connections, it requires no modifications—even when used with aftermarket aero upgrades.
Key Features and Benefits
- Improved Cooling Performance: 2-row, 42mm ultra-high-performance core with CSF's exclusive B-Tube technology.
- Redesigned Rock Guard: Industry-exclusive detachable aluminum rock guard maximizes airflow and provides superior protection.
- Durable Construction: 100% all-aluminum, TIG-welded build with thermal black protective coating for long-lasting performance.
- Perfect Fitment: Drop-in fit for both left and right sides with no modifications required.
- Proven Performance: Tested by leading tuners, race teams, and turbo kit manufacturers worldwide.
- OEM-Style Components: CNC-machined brackets and Quick Connect inlets/outlets for seamless integration.
- Warranty: Backed by a 2-year limited warranty.
Applications
The CSF Auxiliary Radiator is compatible with a wide range of BMW and Toyota GR Supra models, including:
- BMW G20 M340i / M340i xDrive (2020-2024)
- BMW G22/G23 M440i / M440i xDrive (2021-2024)
- BMW G42 M240i / M240i xDrive (2022-2024)
- BMW G29 Z4 M40i / sDrive30i (2020-2024)
- Toyota GR Supra (2020-2024), including 45th Anniversary and A91-MT Editions.
For full compatibility details, refer to the model list above.
Why Choose CSF?
Modern vehicles like the BMW M340i, M440i, and Toyota GR Supra demand efficient cooling to maintain peak performance. CSF’s Auxiliary Radiator ensures reduced intake air temperatures, consistent power output, and enhanced engine reliability—ideal for both track and street applications.
Upgrade to the CSF Auxiliary Radiator today and experience unmatched cooling performance for your BMW or Toyota GR Supra.
We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.
Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.
It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.
CSF Radiators
Ultimate Performance Cooling
CSF aims to lead the cooling system industry by introducing new technologies and manufacturing processes that allows them to be on the cutting edge of heat transfer innovation.
CSF Radiator FAQs
Common questions we get about CSF Radiators & cooling products.
Performance
The aim of upgrading your vehicles cooling system with CSF Radiators is to improve efficiency, reliability and reduce heat soak. Whilst you waon't see a direct horsepower increase, your vehicle's tuning potential will increase and you'll be able to drive harder for longer without losing horsepower.
Yes. Vehicle manufacturers often try to reduce production costs by cutting corners and using poor materials. CSF Radiators use the highest-quality materials and are built to last for longer than OEM components.
Installation
Unless noted in the listing, this radiator does not require any modifications to be made to fit. CSF Radiators are generally a straight swap for the OEM item and use the same mounting points/fittings.
Installation is the reverse of removal. Installation will require some competence and skills to carry out . Manufacturers provide paid access to manuals whereby you can find detailed instructions on how to replace radiators, the tools required and any other specific notes.
We recommend using the manufacturer specified coolant with CSF Radiators.
Shipping
If you have an address, we can ship to you! We have fulfillment centres in both the UK and USA that allow us to ship worldwide with the best rates and shipping times.