Koyo Aluminum Racing Radiator (Manual) - 2008-2021 Subaru WRX / STI
Koyo Aluminum Racing Radiator (Manual) - 2008-2021 Subaru WRX / STI
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KOYVH091662
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KOYVH091662
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KOYVH091662
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KOYVH091662
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KOYVH091662
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KOYVH091662
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KOYVH091662
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KOYVH091662
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KOYVH091662
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KOYVH091662
Koyo
Koyo Aluminum Racing Radiator (Manual) - 2008-2021 Subaru WRX / STI
Koyo Aluminum Racing Radiator (Manual) - 2008-2021 Subaru WRX / STI
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Koyo Aluminum Racing Radiator
Elevate Cooling Performance with Koyorad Hyper V-Core Series
Discover unparalleled cooling efficiency with the Hyper V-Core Series, the latest addition to the Koyorad | Koyo All Aluminum Racing Radiator lineup. Engineered to overcome the challenges of limited space and compromised air circulation in modern vehicles, this radiator series introduces an ultra-efficient design tailored for extreme heat conditions. Specifically crafted for scenarios where factory inlet/outlet locations restrict options for a proper N-FLO design, the Hyper V-Core series emerges as the ultimate solution, offering a perfect balance of space savings and high performance.

Key Features:
- Ultra-Efficient Hyper V Core: Engineered for vehicles with restricted space and exposed to extreme heat, ensuring optimum cooling performance.
- Specially Designed Fin and Tube Pitch: Drastically increases surface area while maintaining excellent air circulation through the radiator.
- Direct Replacement: Precision-engineered as a direct replacement for factory units, simplifying the installation process.
With the Hyper V-Core series, Koyorad redefines the standards of efficiency and performance in challenging conditions. Upgrade your vehicle's cooling capabilities confidently, knowing that Koyorad has introduced a radiator that sets new benchmarks in the realm of cooling technology.

| Specification | Value |
|---|---|
| Core Depth | 1.41 In |
| Core End Tank Material | Aluminum |
| Core Height | 13.38 In |
| Core Width | 26.65 In |
| Includes Radiator Cap | No |
- 5 stars: 12 (92%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 1 (8%)
I upgraded my radiator as I was approaching 85k miles and the plastic on my old radiator was beginning to get brittle. Great quality. I’ve noticed that the car runs a little cooler but drops temp much faster after pulls or aggressive driving. Looks great in the engine bay. Don’t forget to order the cap as well.
Item arrived on-time and in excellent condition. 0 issues with fitment and overall installation.
Purchased this rad after my OEM plastic separated from the aluminum. I would normally run 205° with the OEM. But with Koyorad, I'm around 190°. CRAZY difference!
Ordered this due to my 2019 sti temps going up with this AZ heat. Temps were upwards of 226f on the freeway at about 3k rpm. Now i can cruise upwards of that no problem and temps stay typically stay under 210f
This thing looks and performs great! Easy install, no complaints
perfect fitment on my 2020 STi.. keeping the engine cool and happy. Plus is looks a lot better then stock radiator.
Damaged, will reach out to subispeed
Does what it is suppose to do and looks better than stock!
Easy & straight forward Install, Great quality except it doesn’t come with a radiator cap
Great product. Easy install.
looks great!
Easy to Install and Does amazing Job at keeping my 15 WRX STI at temp.
I love it , it fits and run
Is this for manual transmission or automatic?
This Koyorad Radiator will be for Manual Transmissions!