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Friday, April 24, 2020

Koyorad is proud to introduce an improved lightweight performance radiator for the 1988-1991 Honda Civic/CRX swapped with B-Series engines.  Koyorad has engineered this TIG welded, all-aluminum radiator with 43% less weight than Koyorad’s original R-Core version, yet remains 56% thicker than the factory radiator, resulting in improved performance while cutting unnecessary weight. Koyorad’s high density Hypercore boosts the vehicle’s heat capacity and endurance while replacing aged factory radiators for improved tank strength and durability.  OEM mounting provisions have been retained for an easy installation and can be used with factory fans, and accepts the larger 32mm B-Series radiator hoses.  Koyorad’s advanced engineering and design methods, impeccable TIG welds, proficient furnace brazing techniques, and triple pressure testing for quality has earned their excellent reputation in performance cooling worldwide.

’88-’91 Honda Civic /CRX EF Chassis with B-Series, manual transmission

32mm inlet/outlet hoses for B-Series engines, Manual Transmission only.


• 43% lighter than Koyorad R Series Core
• High Density 25mm Hypercore
• 56% thicker core than OEM radiator
• Compatible with B-Series 32mm Radiator hoses
• Slim core profile benefits: OEM traction bar clearance, space for additional heat exchangers, cleaner look
• All-aluminum, furnace brazed, and TIG welded construction
• Triple Pressure tested


Now in stock

Thursday, April 9, 2020

As an essential part of the automotive supply chain, Koyorad remains fully operational and is committed to providing our high quality products and services to our distributors during this difficult time.  For any assistance, contact our offices or your sales representative directly.

Monday, April 6, 2020

New Product Announcement
All-Aluminum Radiator
2000-2005 Toyota MR2 Spyder Manual Transmission Only

Koyorad is proud to re-introduce an improved all-aluminum performance radiator for the 2000-2005 Toyota MR2 Spyder with manual transmissions.  This radiator features a 36mm high density Hypercore for improved efficiency and over the twice the thickness over the stock OEM radiator.  A densely stacked tube and fin core arrangement boosts the cooling system’s endurance and heat capacity under harsh track use.  The all-aluminum fully brazed radiator construction replaces aged factory radiators with brittle plastic tanks for improved seam strength and durability.
  Factory fans, AC condenser, OEM radiator hoses and mounting provisions are retained and requires no modifications to install.  Koyorad’s advanced engineering and design methods, impeccable TIG welds, proficiency in furnace brazing, and triple pressure testing for quality has earned their excellent reputation in performance cooling worldwide.



·         36mm High Density Hyper Core

·         All-aluminum construction

·         TIG Welded and furnace brazed construction

·         Billet aluminum drain plug

·         Compatible with OEM fans, hoses and mounting provisions

·         Strategically placed thermal reliefs allow core resiliency after heat cycling

·         Triple pressure tested during manufacturing process

Part #




’00-‘05 Toyota MR2 Spyder 1.8L I4 MT



Manual Transmission only





Tuesday, January 28, 2020

Koyorad is proud to introduce all-aluminum remote radiators for the 2020 Toyota Supra and 2018 to current BMW Z4 3.0L.  Features include: hand welded end tanks, furnace brazed and high density 48mm Hyper cores, and split directional louvered fins.  Radiator core thickness has been increased by nearly 80% over the OEM auxiliary radiators to boost the platform’s heat capacity and endurance.  An all-aluminum construction provides an excellent upgrade to the OEM plastic tank heat exchangers which are prone to cracking over time.  Packaging includes both driver and passenger side remote radiators.  All mounting provisions are retained for the OEM rock guards and shrouding.  The OEM quick connect hoses are a direct fit allowing an easy 30 minute installation per side with common hand tools.  Advanced engineering and design methods, impeccable TIG welds, proficient furnace brazing, and triple pressure testing for quality has earned Koyorad an excellent reputation in performance cooling worldwide.






• 2020 Toyota Supra 3.0L Turbo

• 2018 to current BMW Z4 3.0L Turbo



Packaging contains left and right side remote radiators. Transfer OEM rock guards to Koyorad remote radiators. Follow vehicle manufacturer’s coolant fill instructions.



MSRP: $720.00



Now in stock


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