CSF Auxiliary Radiator — Toyota GR Supra A90 / BMW G20 M340i

Don't be fooled by other high-performance aftermarket options that utilize the OEM plastic rock guard. The OEM rock guard's vertical channel design is specifically designed to only work with the tube spacing found on the OEM core. When the OEM rock guard is installed on an aftermarket radiator, it actually blocks a significant amount of surface area. During CSF's own R&D phase, CSF analyzed both the OEM and other aftermarket offerings and redesigned the included rock guard to allow maximum flow to the radiator core, while still offering ample protection from small rocks and road debris - all proven in CSF's in-house wind tunnel.

CSF's Auxiliary Radiator fits both the left and right side of the vehicle as a drop-in fit, requiring no modifications to install. Each features CNC machined mounting brackets and OEM style "Quick Connect" inlet/outlet connections. This makes for a true plug-and-play installation that does not interfere with aftermarket performance aero modifications.

Features

• 2-Row, 42mm Ultra High Performance Core with CSF's Exclusive B-Tube Technology
• 2026 Update: New "Track-Spec" 5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact and Heat Dissipation
• CNC Machined Mounting Brackets and OEM Style "Quick Connect" Inlet/Outlet
• 100% All Aluminum TIG-Welded Construction
• Includes Detachable Aluminum Rock Guard (Industry Exclusive)
• Finished in a Thermal Black Protective Coating
• Sold Individually - Fits Both Left & Right Side of Vehicle
• 2-Year Limited Warranty
• Drop-in Fit Requires No Modifications to Install

Manufacturer fitment:
2019+ Toyota GR Supra (A90/A91)
18-20 BMW G20 320i & M340i(X)
17-20 BMW G29 Z4 30i & Z4 M40i - Auxiliary Radiator

Sold Individually Some Cars May Require Two

Every order is confirmed with our supplier before your card is charged. Once confirmed, parts ship from our partner warehouse and you receive tracking by email.

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