CSF BMW Z4/Toyota Supra High Performance Aux Cooler (G29/A90)

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.