CSF GR Corolla & GR Yaris High-Performance Radiator

CSF #7233

Design & Engineering

CSF is well known for making the best Toyota cooling systems in the world. With years of feedback from Customers, Race Teams, and Development Partners, CSF has the more experience with Toyota cooling systems than any other company in the world.

With more and more people pushing the limits of the GR Corolla / GR Yaris, the factory radiator has started showing its limitations. Bigger turbos cranking out more power create a lot more heat that needs to be dissipated. Furthermore, the intercooler is mounted directly in front of the radiator, so all the heat shed by that system runs through it. In racing applications this can be detrimental to engine coolant temperatures and risk sending your GR Corolla / GR Yaris into limp mode.

CSF vs OEM

The original OE radiator from Toyota is a plastic tank with a single row aluminum core design. While this is generally accepted as good quality and durable, there is always room for improvement. The 5mm fins on the OE radiator made the system fairly efficient for a factory unit. The core itself is one of the biggest limiting factors at only 27mm thick and a single cooling row.

With data collected by development partners and race teams, CSF was able to design the ideal High-Performance replacement. The CSF radiator features the latest 5mm fin technology. These fins significantly increase the heat exchange surface area improving overall cooling efficiency and recovery while still maintaining good airflow. The core is much larger than the factory featuring 2-Row 42mm aluminum core. This both increases the fluid capacity of the radiator, and improves the cores ability to dissipate heat. CSF’s Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance.

The TIG-Welded 100% All Aluminum construction increases the overall strength of the radiator. This improves durability and longevity so you can be confident it will hold up to hard driving conditions. The right side tank includes a pre-plugged 1/8th NPT temperature sensor port for those looking for more accurate coolant temperature readings. Pre-installed foam strips on top and bottom end plates improve sealing for better airflow over the radiator. The CSF radiator mounts in the factory location and requires no modifications or cutting.

Toyota GR Corolla & GR Yaris High-Performance Radiator Features (CSF #7233)

• 2-Row, 42mm Ultra-High-Performance Core
• Cooling Tubes with CSF’s Exclusive B-Tube Technology
• New 5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact
• CNC Machined Mounting Brackets and OEM Style Inlet/Outlet
• Pre-plugged 1/8th NPT temperature sensor port on right side tank
• Pre-installed foam strips on top and bottom end plates for increased sealing
• 100% All Aluminum TIG-Welded Construction
• Hand Brushed Satin Finish
• True Plug-and-Play “Drop-in Fit” Installation Requires Absolutely No Modifications
• Individually Leak and Pressure Tested
• 2-Year Limited Warranty

• Applications:
  • 2023+ Toyota GR Corolla
  • 2020+ Toyota GR Yaris

• OEM Part Numbers:
  • Toyota: 16400-18060 (GR Corolla)
  • Toyota: 16400-18050 (GR Yaris)