Mishimoto 2023+ Toyota GR Corolla Performance Aluminum Radiator (MMRAD-GRC-23)
The 2023+ Toyota GR Corolla pushes boundaries, delivering an impressive 300 horsepower from a compact 1.6L 3-cylinder engine. Each cylinder operates at its peak, demanding an exceptional cooling system to keep up. Prolonged track use or idle traffic can challenge the stock system, with some owners reporting oil temperatures exceeding 260°F on the track. The factory liquid-to-liquid oil cooler relies heavily on coolant temperatures to manage oil heat, meaning when the radiator struggles, your oil cooling system soon follows suit. Enter Mishimoto’s performance aluminum radiator, purpose-built to handle the demands of your GR Corolla. Designed to optimize cooling efficiency, this radiator ensures every element of your engine stays at peak performance, even under extreme conditions. Whether you're pushing limits on the track or navigating urban traffic, Mishimoto keeps your GR Corolla cool and composed.
This all-aluminum radiator replaces the stock plastic end tank unit with a core that is 51 percent larger. That increase in core volume means your cooling system can hold more coolant and dissipate more heat, placing less stress on the cooling system overall. Inside the core, we've focused on utilizing the entire cooling area with strutted tubes and louvered fins. Strutted tubes allow us to use a single, wider tube, that has greater effective area than multi-row cores. These strutted tubes also significantly improve core rigidity to help prevent leaks from impacts like potholes or running off track. Louvered external fins circulate air throughout the core to transfer more heat. Finally, the included foam shrouding ensures cool air goes through the core, not just around it.
In addition to performance, we've also thought about durability and serviceability. Our radiator features reinforced intercooler mounts, so you can add a larger intercooler (like Mishimoto's) without worrying about the mounts breaking. To help service your new radiator, we've designed an extended drain port with a slotted drain plug, to keep draining mess-free. Of course, this 2023+ GR Corolla performance radiator is also backed by our Mishimoto Lifetime Warranty for a lifetime of performance.
APPLICATION
- Toyota GR Corolla (2023, 2024)
FEATURES
- Direct fit for 2023+ Toyota GR Corolla
- 51 percent increase in core volume over stock for improved cooling performance
- Single-row core with strutted tubes utilizes entire core thickness for cooling
- Louvered external fins improve heat transfer
- Extruded tubes and full-aluminum construction for improved durability
- Reinforced intercooler mounts support future upgrades
- Extended drain with slotted plug make maintenance mess-free
- Mishimoto Lifetime Warranty
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Depending on the package, we ship using different carriers according to the item's location, content, and size.
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WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to www.P65Warnings.ca.gov/passenger-vehicle.
Mishimoto 2023+ Toyota GR Corolla Performance Aluminum Radiator (MMRAD-GRC-23)
