{"title":"Koyo","description":"","products":[{"product_id":"hh423660-koyo-radiators-supra-gr-mkv-a90","title":"Koyo HH-Series 48mm Radiators for 2020+ Supra GR (HH423660)","description":"Koyorad all-aluminum remote radiators for the 2020+ Toyota Supra GR A90 models. The 48mm Hyper core is nearly 80% thicker than OEM and is an excellent upgrade to the factory plastic tank heat exchangers which are prone to cracking over time.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2020 Toyota Supra(GR A90 MKV MK5)\u003cbr\u003e2018+ BMW Z4\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eFeatures:\u003c\/span\u003e\u003cbr\u003e• Direct fit to OEM Quick Connect Hoses\u003cbr\u003e• Nearly 80% Thicker than the OEM Core\u003cbr\u003e• Furnace Brazed and High Density 48mm Hyper Cores\u003cbr\u003e• Split Directional Louvered Fins\u003cbr\u003e• Hand Welded End Tanks\u003cbr\u003e• All-Aluminum Construction\u003cbr\u003e• HH Series Radiator\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(2) Radiators (Both left and right remote radiators.)\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyorad:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eKoyorad 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.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eAn 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.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eAll 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. \u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eAdvanced 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.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003ePackaging contains left and right side remote radiators. Transfer OEM rock guards to Koyorad remote radiators. Follow vehicle manufacturer’s coolant fill instructions.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50563014426966,"sku":"KOY-HH423660","price":647.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/HH423660-koyo-radiators-supra-gr-mkv-a90.jpg?v=1749207741"},{"product_id":"koyo-racing-drain-plug-for-aluminum-radiator-pi-1186","title":"Koyo Racing Drain Plug for Aluminum Radiator (PI-1186)","description":"Replacement drain plug for the Koyo Racing aluminum radiators.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(1) Plug with Washer\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50563209068886,"sku":"KOY-PI-1186","price":13.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/koyo-racing-drain-plug-for-aluminum-radiator-pi-1186-1.jpg?v=1749210483"},{"product_id":"koyo-racing-aluminum-radiator-nissan-350z","title":"Koyo HH-Series 48mm Radiator for 350Z Manual (HH021568)","description":"The Koyorad HH-Series radiator features a 48mm core, polished aluminum finish and factory-replacement mounting for the Nissan 350Z models with manual transmission.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e2003-2006 Nissan 350Z\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(* Manual Transmission Only *)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(* Not for automatic models *)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(1) Radiator\u003cbr\u003ePlease note, \u003ca style=\"color: #ffffff; text-decoration: underline;\" target=\"blank\" href=\"https:\/\/stmtuned.com\/products\/koyo-red-radiator-cap\"\u003e The Radiator Cap\u003c\/a\u003e is sold separately.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eKoyorad quality is a direct result of their privately owned factories which allow Koyorad Japan to oversee each stage of radiator production. This ensures that quality is never sacrificed for quantity. Each Koyo all aluminum radiator core is hand assembled, Nocolok brazed, then TIG welded by hand with the finest aluminum available. These are just a few characteristics that have earned Koyorad Radiators their excellent reputation in performance radiators worldwide.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eKoyorad \"HH\" Series 48mm Hyper Core:\u003c\/span\u003e\u003cbr\u003e• OE Specific mounting and direct fit\u003cbr\u003e• Mirror polished finish\u003cbr\u003e• Nocolok-R Brazing\u003cbr\u003e• Precise Tube and Fin alignment\u003cbr\u003e• Billet aluminum filler neck\u003cbr\u003e• 1\/8\" NPT female accessory fitting\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50563906371926,"sku":"KOY-HH021568","price":516.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/HH021568_KoyoRad_Aluminum_Radiator_Nissan_350Z.jpg?v=1749215383"},{"product_id":"vh091672-koyo-radiator-2003-2007-wrx-sti","title":"Koyo Hyper-V 36mm Radiator for 03-07 WRX\/STi Manual (VH091672)","description":"The Koyorad Hyper-V series radiator features a slim 36mm core, brushed aluminum finish and factory-replacement fit for the\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e2003-2007\u003c\/span\u003e Subaru WRX and 2004-2007\u003cspan\u003e \u003c\/span\u003eSTi models with manual transmission.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e2003-2007 Subaru WRX M\/T\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2004-2007 Subaru STi\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(* Manual Transmission Only *)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(* Not for automatic models *)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(1) Radiator\u003cbr\u003ePlease note, \u003ca style=\"color: #ffffff; text-decoration: underline;\" target=\"blank\" href=\"https:\/\/stmtuned.com\/products\/koyo-red-radiator-cap\"\u003e The Radiator Cap\u003c\/a\u003e is sold separately.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eThe Hyper V Series radiators have a specially designed fin and tube pitch which significantly increases its surface area while still allowing for excellent air circulation through the radiator. The Hyper V-Core series is the perfect solution where space savings and high performance is a must.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eUnless noted otherwise, all Koyorad Hyper V-Series All Aluminum Radiators are Nocolok brazed, designed as a factory fit, direct bolt in with no engine modifications necessary, and retain mounts for the stock fan shrouds and fans.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eKoyorad \"Hyper-V\" Series 36mm Core:\u003c\/span\u003e\u003cbr\u003e• All aluminum construction\u003cbr\u003e• Thicker core\u003cbr\u003e• Heli-arc welded for stronger enforcement along aluminum connections\u003cbr\u003e• Precise tube and fin alignment promotes optimal coolant flow and fins with highly efficient heat transfer\u003cbr\u003e• NoClock Brazing is featured on the tubes, fins, headers and brackets using a state-of-the-art NoClock furnace which bonds all components to resist damage from vibration, road debris, and the elements\u003cbr\u003e• Billet Filler Neck is precision machined for durability\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50563906666838,"sku":"KOY-VH091672","price":459.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/Koyo_Racing_Aluminum_Radiator_-_2003-2007_WRX_STi_Manual_Transmission.jpg?v=1749215386"},{"product_id":"koyo-racing-aluminum-radiator-2002-wrx-manual-transmission","title":"Koyo Hyper-V 36mm Radiator for 2002 WRX Manual (VH090866)","description":"The Koyorad Hyper-V series radiator features a slim 36mm core, brushed aluminum finish and factory-replacement fit for the\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e2002 Subaru WRX\u003c\/span\u003e models with manual transmission.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e2002 Subaru WRX M\/T\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(* Manual Transmission Only *)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(* Not for automatic models *)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(1) Radiator\u003cbr\u003ePlease note, \u003ca style=\"color: #ffffff; text-decoration: underline;\" target=\"blank\" href=\"https:\/\/stmtuned.com\/products\/koyo-red-radiator-cap\"\u003e The Radiator Cap\u003c\/a\u003e is sold separately.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eThe Hyper V Series radiators have a specially designed fin and tube pitch which significantly increases its surface area while still allowing for excellent air circulation through the radiator. The Hyper V-Core series is the perfect solution where space savings and high performance is a must.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eUnless noted otherwise, all Koyorad Hyper V-Series All Aluminum Radiators are Nocolok brazed, designed as a factory fit, direct bolt in with no engine modifications necessary, and retain mounts for the stock fan shrouds and fans.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eKoyorad \"Hyper-V\" Series 36mm Core:\u003c\/span\u003e\u003cbr\u003e• All aluminum construction\u003cbr\u003e• Thicker core\u003cbr\u003e• Heli-arc welded for stronger enforcement along aluminum connections\u003cbr\u003e• Precise tube and fin alignment promotes optimal coolant flow and fins with highly efficient heat transfer\u003cbr\u003e• NoClock Brazing is featured on the tubes, fins, headers and brackets using a state-of-the-art NoClock furnace which bonds all components to resist damage from vibration, road debris, and the elements\u003cbr\u003e• Billet Filler Neck is precision machined for durability\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50563906699606,"sku":"KOY-VH090866","price":464.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/VH090866-koyo-radiator-2002-subaru-wrx.jpg?v=1749215389"},{"product_id":"koyo-racing-radiator-cap-hyper-blue-brz-frs-86","title":"Koyo Hyper Blue Radiator Cap for BRZ FRS 86 (SK-D13)","description":"This design is made specifically for the BRZ, FRS and GT86 factory radiator fill neck. If you purchased the Koyo Aluminum Radiator, you'll need to use the red cap. The Koyorad Hyper Cap withstands an increased valve pressure rating of 1.3kgf\/cm2 (1.3 bar) (18.9 psi) (130 kPa) which increases the boiling point of water and relieves high performance engines of excessive heat. \u003cbr\u003e\u003cbr\u003e \u003cspan style=\"color: #ff0000;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e 2013+ Scion FR-S\u003cbr\u003e2013+ Subaru BRZ\u003cbr\u003e2017+ Toyota 86\u003cbr\u003e\u003cbr\u003e \u003cspan style=\"color: #ff0000;\"\u003eFeatures:\u003c\/span\u003e\u003cbr\u003e• Hyper Blue Color\u003cbr\u003e• 1.3 bar OEM style cap\u003cbr\u003e• Resists 1.3kg\/cm2 of pressure\u003cbr\u003e• For use with factory BRZ\/FRS\/86 radiator fill\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eExtract every ounce of cooling efficiency from Koyorad All Aluminum Performance Radiators with a genuine Koyorad Hyper Cap! This Koyorad Hyper Cap withstands an increased valve pressure rating of 1.3kgf\/cm2 (1.3 bar) (18.9 psi) (130 kPa) which increases the boiling point of water and relieves high performance engines of excessive heat. A genuine Koyorad Hyper Cap is recommended for use with every Koyorad All Aluminum Performance Radiator (when applicable). This Koyorad Hyper Cap is manufactured in Japan from high quality components to ensure longevity and performance from your Koyorad Racing radiator.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eWhy is increased Pressure Better?\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eIt’s simple. When water is pressurized, its natural boiling point is increased. Most modern vehicles are equipped with a 0.9 Bar pressure cap. Koyorad’s Hyper Cap is rated at 1.3 Bar which increases the boiling temperature of your coolant to 267.80 degrees Fahrenheit. That is nearly a 56 degree increase over water's normal boiling point. By increasing the boiling point of water, an engine's cooling system will have the added heat capacity, maximizing performance under ever-changing racing conditions.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50563906765142,"sku":"KOY-SK-D13","price":44.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/SK-D13-koyo-racing-radiator-cap-hyper-blue-brz-frs-86.jpg?v=1749215390"},{"product_id":"koyo-brz-frs-86-radiator","title":"Koyo Hyper-V 36mm Radiator for BRZ FRS 86 (VH012663)","description":"The Koyorad Hyper-V series radiator features a slim 36mm core, brushed aluminum finish and factory-replacement fit for the Subaru BRZ, Scion FRS and Toyota GT86 models. \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eFits manual and automatic transmissions.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2013+ Subaru BRZ\u003cbr\u003e2013+ Scion FR-S\u003cbr\u003e2017+ Toyota 86\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(1) Radiator\u003cbr\u003ePlease note, \u003ca style=\"color: #ffffff; text-decoration: underline;\" target=\"blank\" href=\"https:\/\/stmtuned.com\/products\/koyo-red-radiator-cap\"\u003e The Radiator Cap\u003c\/a\u003e is sold separately.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eThe Hyper V Series radiators have a specially designed fin and tube pitch which significantly increases its surface area while still allowing for excellent air circulation through the radiator. The Hyper V-Core series is the perfect solution where space savings and high performance is a must.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eUnless noted otherwise, all Koyorad Hyper V-Series All Aluminum Radiators are Nocolok brazed, designed as a factory fit, direct bolt in with no engine modifications necessary, and retain mounts for the stock fan shrouds and fans.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eKoyorad \"Hyper-V\" Series 36mm Core:\u003c\/span\u003e\u003cbr\u003e• All aluminum construction\u003cbr\u003e• Thicker core\u003cbr\u003e• Heli-arc welded for stronger enforcement along aluminum connections\u003cbr\u003e• Precise tube and fin alignment promotes optimal coolant flow and fins with highly efficient heat transfer\u003cbr\u003e• NoClock Brazing is featured on the tubes, fins, headers and brackets using a state-of-the-art NoClock furnace which bonds all components to resist damage from vibration, road debris, and the elements\u003cbr\u003e• Billet Filler Neck is precision machined for durability\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50564274192726,"sku":"KOY-VH012663","price":429.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/Koyo_Racing_Aluminum_Radiator_BRZ_FRS_86.jpg?v=1749217583"},{"product_id":"koyo-racing-wrx-radiator","title":"Koyo Hyper-V 36mm Radiator for 08-14 WRX\/08+ STi Manual (VH091662)","description":"\u003cp\u003eThe Koyorad Hyper-V series radiator features a slim 36mm core, brushed aluminum finish and factory-replacement fit for the 2008-2014 Subaru WRX and \u003cspan\u003e2008-\u003c\/span\u003e\u003cspan\u003e2020 \u003c\/span\u003eSTi models with manual transmission.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2008-2014 Subaru WRX M\/T\u003cbr\u003e2008-2020 Subaru STi\u003cbr\u003e(* Manual Transmission Only *)\u003cbr\u003e(* Not for automatic models *)\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(1) Radiator\u003cbr\u003ePlease note, \u003ca style=\"color: #ffffff; text-decoration: underline;\" target=\"blank\" href=\"https:\/\/stmtuned.com\/products\/koyo-red-radiator-cap\"\u003e The Radiator Cap\u003c\/a\u003e is sold separately.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eThe Hyper V Series radiators have a specially designed fin and tube pitch which significantly increases its surface area while still allowing for excellent air circulation through the radiator. The Hyper V-Core series is the perfect solution where space savings and high performance is a must.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eUnless noted otherwise, all Koyorad Hyper V-Series All Aluminum Radiators are Nocolok brazed, designed as a factory fit, direct bolt in with no engine modifications necessary, and retain mounts for the stock fan shrouds and fans.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eKoyorad \"Hyper-V\" Series 36mm Core:\u003c\/span\u003e\u003cbr\u003e• All aluminum construction\u003cbr\u003e• Thicker core\u003cbr\u003e• Heli-arc welded for stronger enforcement along aluminum connections\u003cbr\u003e• Precise tube and fin alignment promotes optimal coolant flow and fins with highly efficient heat transfer\u003cbr\u003e• NoClock Brazing is featured on the tubes, fins, headers and brackets using a state-of-the-art NoClock furnace which bonds all components to resist damage from vibration, road debris, and the elements\u003cbr\u003e• Billet Filler Neck is precision machined for durability\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50564274880854,"sku":"KOY-VH091662","price":510.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/Koyo_Racing_Aluminum_Radiator_08-18_WRX_STi_Manual_Transmission.jpg?v=1749217583"},{"product_id":"koyo-hh-series-radiator-r35-gtr","title":"Koyo HH-Series 48mm Radiator for R35 GTR (HH022360)","description":"The Koyorad HH-Series radiator features a 48mm core, polished aluminum finish and factory-replacement mounting for the R35 GTR models.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003e2009+ Nissan R35 GT-R\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(1) Radiator\u003cbr\u003ePlease note, \u003ca style=\"color: #ffffff; text-decoration: underline;\" target=\"blank\" href=\"https:\/\/stmtuned.com\/products\/koyo-red-radiator-cap\"\u003e The Radiator Cap\u003c\/a\u003e is sold separately.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eKoyorad quality is a direct result of their privately owned factories which allow Koyorad Japan to oversee each stage of radiator production. This ensures that quality is never sacrificed for quantity. Each Koyo all aluminum radiator core is hand assembled, Nocolok brazed, then TIG welded by hand with the finest aluminum available. These are just a few characteristics that have earned Koyorad Radiators their excellent reputation in performance radiators worldwide.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eKoyorad \"HH\" Series 48mm Hyper Core:\u003c\/span\u003e\u003cbr\u003e• OE Specific mounting and direct fit\u003cbr\u003e• Mirror polished finish\u003cbr\u003e• Nocolok-R Brazing\u003cbr\u003e• Precise Tube and Fin alignment\u003cbr\u003e• Billet aluminum filler neck\u003cbr\u003e• 1\/8\" NPT female accessory fitting\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50564279599446,"sku":"KOY-HH022360","price":711.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/HH022360-KOYO.jpg?v=1749217592"},{"product_id":"koyo-evo-x-aluminum-racing-radiator","title":"Koyo Hyper-V 36mm Radiator for Evo X (V2979)","description":"The Koyorad Hyper-V series radiator features a slim 36mm core, brushed aluminum finish and factory-replacement fit for the \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e2008-2015 \u003c\/span\u003eEvo X and Ralliart. \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eFits both SST and manual transmission models.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e2008-2015 Mitsubishi Evolution X\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e2009-2015 Mitsubishi Lancer Ralliart \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(Fits all Automatic and Manual Transmissions)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(1) Radiator\u003cbr\u003ePlease note, \u003ca style=\"color: #ffffff; text-decoration: underline;\" target=\"blank\" href=\"https:\/\/stmtuned.com\/products\/koyo-red-radiator-cap\"\u003e The Radiator Cap\u003c\/a\u003e is sold separately.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eThe Hyper V Series radiators have a specially designed fin and tube pitch which significantly increases its surface area while still allowing for excellent air circulation through the radiator. The Hyper V-Core series is the perfect solution where space savings and high performance is a must.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eUnless noted otherwise, all Koyorad Hyper V-Series All Aluminum Radiators are Nocolok brazed, designed as a factory fit, direct bolt in with no engine modifications necessary, and retain mounts for the stock fan shrouds and fans.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eKoyorad \"Hyper-V\" Series 36mm Core:\u003c\/span\u003e\u003cbr\u003e• All aluminum construction\u003cbr\u003e• Thicker core\u003cbr\u003e• Heli-arc welded for stronger enforcement along aluminum connections\u003cbr\u003e• Precise tube and fin alignment promotes optimal coolant flow and fins with highly efficient heat transfer\u003cbr\u003e• NoClock Brazing is featured on the tubes, fins, headers and brackets using a state-of-the-art NoClock furnace which bonds all components to resist damage from vibration, road debris, and the elements\u003cbr\u003e• Billet Filler Neck is precision machined for durability\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50565014585686,"sku":"KOY-V2979","price":439.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/Koyo_Racing_Aluminum_Radiator_Evo_X.jpg?v=1749222258"},{"product_id":"koyo-hh-series-evo-8-9-half-size-aluminum-radiator","title":"Koyo HH-Series 48mm Half-Sized Radiator for Evo 8\/9 (HH032412)","description":"The Koyo HH Series Evo 8\/9 Half-Size Aluminum Radiator is a RACE ONLY item due to its size and volume being roughly 1\/2 the size in comparison to the vehicle's stock radiator.\u003cbr\u003e\u003cbr\u003eThis radiator is not designed for street or long duration uses and generally only recommended for drag cars. This will also require some creative DIY mounting solution and will need and Evo 4\/5\/6 radiator hose kit.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan class=\"vehicle_application\"\u003e2003-2006 Mitsubishi Evolution VIII-IX\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(1) Radiator\u003cbr\u003ePlease note, \u003ca style=\"color: #ffffff; text-decoration: underline;\" target=\"blank\" href=\"https:\/\/stmtuned.com\/products\/koyo-red-radiator-cap\"\u003e The Radiator Cap\u003c\/a\u003e is sold separately.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003eKoyorad quality is a direct result of their privately owned factories which allow Koyorad Japan to oversee each stage of radiator production. This ensures that quality is never sacrificed for quantity. Each Koyo all aluminum radiator core is hand assembled, Nocolok brazed, then TIG welded by hand with the finest aluminum available. These are just a few characteristics that have earned Koyorad Radiators their excellent reputation in performance radiators worldwide.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eKoyorad \"HH\" Series 48mm Hyper Core:\u003c\/span\u003e\u003cbr\u003e• OE Specific mounting and direct fit\u003cbr\u003e• Mirror polished finish\u003cbr\u003e• Nocolok-R Brazing\u003cbr\u003e• Precise Tube and Fin alignment\u003cbr\u003e• Billet aluminum filler neck\u003cbr\u003e• 1\/8\" NPT female accessory fitting\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50565479366998,"sku":"KOY-HH032412","price":420.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/Koyo_Racing_Half-Size_Aluminum_Radiator_Evo_8_9.jpg?v=1749226061"},{"product_id":"koyo-racing-jdm-evo-4-5-6-aluminum-racing-radiator","title":"Koyo HH-Series 48mm Radiator for Evo 4\/5\/6 (Fits 7\/8\/9) (HH030939)","description":"The Koyorad HH-Series radiator features a 48mm core and polished aluminum finish. This is a direct replacement fit for the Evo 4\/5\/6 models. The Evo 7\/8\/9 models can use this radiator if you purchase an Evo 4\/5\/6 style upper hose. This 4\/5\/6 radiator places the hose more to the left of the engine bay, making room for larger manifolds.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"vehicle_application\"\u003e\u003cspan class=\"vehicle_application\"\u003eFits Evo 7\/8\/9 with 4\/5\/6 upper hose\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan class=\"vehicle_application\"\u003e\u003cspan\u003eFits Evo\u003c\/span\u003e 4\/5\/6 (factory replacement fit)\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003cp\u003e\u003cspan class=\"product_description\"\u003e\u003cspan class=\"vehicle_application\"\u003e\u003cspan class=\"color1\" style=\"color: #ff0000;\"\u003eInstall Notes:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe Evo 4\/5\/6 Radiator fits the Evo 7\/8\/9 and puts the upper coolant hose in a different location, creating extra room for exhaust manifolds.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eYou will need the Evo 4\/5\/6 upper radiator hose if you are swapping it into your Evo 7\/8\/9.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eYour factory-style lower hose will still work. The lower hose is vehicle-specific no matter which radiator you have. If you have an Evo 8, use the Evo 8 style lower hose. The radiator outlets are the same, but the water pipes are different between the models.\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"product_description\"\u003e\u003cspan class=\"vehicle_application\"\u003e\u003cspan\u003eEVOLUTION 4\/5\/6, but must use Evolution 7\/8\/9 fan. When installing in an Evolution 7\/8\/9, stock fan will mount, but stock air intake system is not compatible.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"product_description\"\u003e\u003cspan class=\"vehicle_application\"\u003e\u003cbr\u003e\u003cspan\u003eThis will not fit with the Factory Evo 7\/8\/9 airbox.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(1) Radiator\u003cbr\u003ePlease note, \u003ca style=\"color: #ffffff; text-decoration: underline;\" target=\"blank\" href=\"https:\/\/stmtuned.com\/products\/koyo-red-radiator-cap\"\u003e The Radiator Cap\u003c\/a\u003e is sold separately.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eKoyorad quality is a direct result of their privately owned factories which allow Koyorad Japan to oversee each stage of radiator production. This ensures that quality is never sacrificed for quantity. Each Koyo all aluminum radiator core is hand assembled, Nocolok brazed, then TIG welded by hand with the finest aluminum available. These are just a few characteristics that have earned Koyorad Radiators their excellent reputation in performance radiators worldwide.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eKoyorad \"HH\" Series 48mm Hyper Core:\u003c\/span\u003e\u003cbr\u003e• OE Specific mounting and direct fit\u003cbr\u003e• Mirror polished finish\u003cbr\u003e• Nocolok-R Brazing\u003cbr\u003e• Precise Tube and Fin alignment\u003cbr\u003e• Billet aluminum filler neck\u003cbr\u003e• 1\/8\" NPT female accessory fitting\u003cbr\u003e\u003cbr\u003e\u003ca target=\"blank\" href=\"https:\/\/stmtuned.com\/collections\/koyo-products\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50565479694678,"sku":"KOY-HH030939","price":546.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/Koyo_Racing_Aluminum_Radiator_Evo_4_5_6_Fits_7_8_9.jpg?v=1749226066"},{"product_id":"koyo-racing-evo-8-9-aluminum-racing-radiator","title":"Koyo HH-Series 48mm Radiator for Evo 7\/8\/9 (HH031610)","description":"The Koyorad HH-Series radiator features a 48mm core, polished aluminum finish and factory-replacement mounting for the CT9A Evo 7\/8\/9.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2001-2006 Mitsubishi Evolution VII VIII IX\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e(1) Radiator\u003cbr\u003ePlease note, \u003ca style=\"color: #ffffff; text-decoration: underline;\" href=\"https:\/\/stmtuned.com\/products\/koyo-red-radiator-cap\" target=\"blank\"\u003e The Radiator Cap\u003c\/a\u003e is sold separately.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eKoyorad quality is a direct result of their privately owned factories which allow Koyorad Japan to oversee each stage of radiator production. This ensures that quality is never sacrificed for quantity. Each Koyo all aluminum radiator core is hand assembled, Nocolok brazed, then TIG welded by hand with the finest aluminum available. These are just a few characteristics that have earned Koyorad Radiators their excellent reputation in performance radiators worldwide.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eKoyorad \"HH\" Series 48mm Hyper Core:\u003c\/span\u003e\u003cbr\u003e• OE Specific mounting and direct fit\u003cbr\u003e• Mirror polished finish\u003cbr\u003e• Nocolok-R Brazing\u003cbr\u003e• Precise Tube and Fin alignment\u003cbr\u003e• Billet aluminum filler neck\u003cbr\u003e• 1\/8\" NPT female accessory fitting\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/stmtuned.com\/collections\/koyo-products\" target=\"blank\"\u003e\u003c\/a\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50565479727446,"sku":"KOY-HH031610","price":516.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/HH031610-KOYO.jpg?v=1749226066"},{"product_id":"koyo-red-radiator-cap","title":"Koyo Hyper Red Radiator Cap (SK-C13)","description":"\u003cp\u003eKoyo 1.3 bar high pressure red radiator cap fits all Koyo aluminum radiators with fill necks and most aftermarket radiators. Fits most Mitsubishi, Subaru and Nissan factory radiators as well.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"vehicle_application\"\u003eFits all Koyo Aluminum Radiators with Fill Necks\u003cbr\u003e1992-2015 Evolution I-X\u003cbr\u003e1991-1999 3000GT VR-4\u003cbr\u003e1991-1996 Stealth R\/T\u003cbr\u003e1990-1999 Eclipse GST\/GSX\u003cbr\u003e1990-1998 Talon TSi\u003cbr\u003e1990-1994 Laser RS\u003cbr\u003e1991-1993 Galant VR4\u003cbr\u003eSubaru WRX \u0026amp; STi (2002-2022+)\u003cbr\u003eNissan R35 GT-R\u003cbr\u003eNissan 350Z \u0026amp; 370Z\u003cbr\u003e1988-1991 Honda Civic\u003cbr\u003e1990-1993 Acura Integra\u003cbr\u003e1992-2001 Honda Prelude\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Koyo:\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eExtract every ounce of cooling efficiency from Koyorad All Aluminum Performance Radiators with a genuine Koyorad Hyper Cap! This Koyorad Hyper Cap withstands an increased valve pressure rating of 1.3kgf\/cm2 (1.3 bar) (18.9 psi) (130 kPa) which increases the boiling point of water and relieves high performance engines of excessive heat. A genuine Koyorad Hyper Cap is recommended for use with every Koyorad All Aluminum Performance Radiator (when applicable). This Koyorad Hyper Cap is manufactured in Japan from high quality components to ensure longevity and performance from your Koyorad Racing radiator.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eWhy is increased Pressure Better?\u003c\/span\u003e\u003cbr\u003e\u003cem\u003eIt’s simple. When water is pressurized, its natural boiling point is increased. Most modern vehicles are equipped with a 0.9 Bar pressure cap. Koyorad’s Hyper Cap is rated at 1.3 Bar which increases the boiling temperature of your coolant to 267.80 degrees Fahrenheit. That is nearly a 56 degree increase over water's normal boiling point. By increasing the boiling point of water, an engine's cooling system will have the added heat capacity, maximizing performance under ever-changing racing conditions.\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/stmtuned.com\/collections\/koyo-products\" target=\"blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":50565593760086,"sku":"KOY-SK-C13","price":40.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/SK-C13-koyo-red-radiator-cap-1.jpg?v=1749226892"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/collections\/Koyo-Logo.jpg?v=1779878523","url":"https:\/\/www.speed-addicts.com\/en\/collections\/koyo.oembed","provider":"Speed Addicts","version":"1.0","type":"link"}