Maximize your Nissan Skyline’s cooling efficiency with the Koyorad 48mm “HH” Series High-Fin Density Aluminum Radiator, now available at Terra Firma Automotive. Specifically engineered for the R33 GTR, GTS25T, and R34 GTT, this performance radiator is a direct-fit upgrade that dramatically improves heat dissipation over the stock unit. Designed to meet the demands of high-performance applications, Koyorad’s advanced 48mm core and ultra-dense fin structure provide unmatched thermal transfer to keep your engine operating at optimal temperatures.
Each Koyorad radiator is constructed with precision and care—featuring an all-aluminum core that’s hand-assembled, Nocolok brazed, and TIG welded using only the highest quality materials. This level of craftsmanship has earned Koyorad global recognition as a leader in performance cooling systems. Terra Firma is proud to include this proven brand in our elite lineup of cooling solutions for Nissan Skyline platforms, offering the reliability and performance required for street and track use alike.
For added versatility, Koyorad integrates a 1/8” NPT fitting, ideal for aftermarket temperature sensor installations, providing added functionality without compromising OEM fitment. When it comes to protecting your RB-series engine from heat stress, don’t gamble with inferior brands. Choose the trusted performance and durability that Koyorad and Terra Firma Automotive deliver.
Upgrade with confidence and drive with peace of mind—install the Koyorad HH Series Aluminum Radiator and keep your Skyline performing at its peak.
- Picture Used For Illustration Purpose, Actual Part May Differ
- Radiator cap sold separately. Click Here to see our line of caps!
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