{"title":"KOYORAD Radiator for Subaru WRX \u0026 STI","description":"\u003cstyle\u003e\n.koyorad-wrx a { color: #1a5490 !important; text-decoration: underline; }\n.koyorad-wrx a:hover { color: #0d3a6b !important; background-color: transparent !important; text-decoration: underline; }\n.koyorad-wrx a:visited { color: #1a5490 !important; }\n.koyorad-wrx a:focus,\n.koyorad-wrx a:active { color: #0d3a6b !important; background-color: transparent !important; outline: 2px solid #1a5490; }\n.koyorad-wrx ::selection { background: #ffe066; color: #000; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"koyorad-wrx\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe full KOYORAD aluminium radiator range for the Subaru WRX and WRX STI — covering 2002–2021 across the GD, GR\/GV\/GH and VA chassis generations.\u003c\/strong\u003e Hyper V-Core 36mm direct-fit cooling upgrades for EJ20, EJ255, EJ257 and FA20F turbo applications, plus shared fitment for Legacy GT, Forester XT and Outback XT. Japanese-engineered by KOYORAD's team in Nagoya, built in KOYORAD's own ISO 9001 certified facility under Japanese engineering oversight, and shipped Australia-wide by Chicane Australia.\u003c\/p\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eRead more — Full WRX\/STI chassis fitment guide, why your manual-trans choice matters, supporting mods and what makes the Hyper V-Core right for these cars\u003c\/strong\u003e\u003c\/summary\u003e\n\n\u003cdiv style=\"text-align: left;\"\u003e\n\n\u003ch3\u003eCritical Fitment Note Before You Order\u003c\/h3\u003e\n\n\u003cp style=\"background: #fff8e6; border-left: 4px solid #d4a017; padding: 12px 16px; margin: 16px 0;\"\u003e\u003cstrong\u003eKOYORAD radiators for the 2002–2021 WRX\/STI are manual transmission only.\u003c\/strong\u003e The Hyper V-Core design does not include the internal transmission cooler that auto-trans WRX\/STI models require. Automatic owners can fit the same radiator \u003cem\u003eonly\u003c\/em\u003e with the addition of an external auxiliary transmission cooler — get in touch before ordering if you're running an auto so we can spec the supporting parts properly.\u003c\/p\u003e\n\n\u003ch3\u003eChassis \u0026amp; Engine Fitment\u003c\/h3\u003e\n\n\u003cul style=\"text-align: left; list-style-position: outside; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eGD chassis (2002–2007) — KOYORAD VH091672:\u003c\/strong\u003e Subaru Impreza WRX 2003–2007, WRX STI 2004–2007 (EJ205\/EJ207\/EJ255\/EJ257)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGR\/GV\/GH\/VA chassis (2008–2021) — KOYORAD VH091662:\u003c\/strong\u003e Covers 2008–2014 WRX (EJ255), 2008–2021 STI (EJ257), 2015–2021 WRX (FA20F), 2005–2012 Legacy GT (EJ255), 2005–2009 Outback XT, 2009–2013 Forester XT, 2013–2017 Crosstrek 2.0L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2002 model year WRX:\u003c\/strong\u003e Requires the 2002-specific radiator (VH090866) — verify your factory radiator has a radiator cap before ordering. Early WRX without a radiator cap need the specific 2002 unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy the EJ \u0026amp; FA Subarus Need a Radiator Upgrade\u003c\/h2\u003e\n\n\u003cp\u003eThe factory Subaru cooling system on the EJ-series turbo and FA20F engines is adequate for stock-tune commuting and not much else. Three things conspire against it:\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e1. Engine bay packaging.\u003c\/strong\u003e Subaru's symmetrical AWD layout pushes the engine forward over the front axle, and the boxer four-cylinder spreads heat across a wider package than an inline engine. The factory radiator sits in a tighter space than most turbocharged four-cylinder cars get, and the airflow path through the front of the car is constrained by the intercooler and air ducting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e2. Plastic end tanks.\u003c\/strong\u003e Like most OEM radiators, the factory Subaru unit uses aluminium core construction with plastic end tanks. The tank-to-core seam is the universal failure point on these radiators — repeated heat cycling makes the plastic brittle, and after 8–12 years the seam starts weeping coolant, eventually cracking and dumping coolant under load. Almost every GD-chassis WRX\/STI in Australia is now in that danger zone. The 2008–2014 cars are entering it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e3. Aftermarket power.\u003c\/strong\u003e A tuned WRX or STI generates significantly more heat than the factory radiator was sized to dissipate. The classic symptom is \"fine on the street, runs hot on a track day or summer hill climb\" — the factory radiator simply runs out of thermal headroom when the cooling demand goes up. ECU-controlled timing pull masks this for a while, but the underlying problem is undersized cooling capacity.\u003c\/p\u003e\n\n\u003cp\u003eThe KOYORAD Hyper V-Core addresses all three: full aluminium construction (no plastic to fail), 36mm dense core with hyper fin\/tube density for maximum heat transfer in the tight Subaru engine bay, and significantly greater cooling reserve for tuned cars.\u003c\/p\u003e\n\n\u003ch2\u003eThe Hyper V-Core Design\u003c\/h2\u003e\n\n\u003cp\u003eKOYORAD developed the Hyper V-Core series specifically for cars like the WRX\/STI — modern turbocharged platforms with limited engine bay space where the factory inlet and outlet positions don't allow KOYORAD's N-Flo internal partition design. The Hyper V-Core's answer is to maximise heat transfer area in the same physical footprint as the factory radiator, using a 36mm thick core with significantly higher fin and tube density than standard radiator designs.\u003c\/p\u003e\n\n\u003cp\u003eSpecifications for the GR\/VA chassis VH091662:\u003c\/p\u003e\n\n\u003cul style=\"text-align: left; list-style-position: outside; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore:\u003c\/strong\u003e 36mm Hyper V-Core, full aluminium construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Core depth 1.41\", core height 13.38\", core width 26.65\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 12.1 lbs (~5.5kg) — significantly lighter than OEM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Hand TIG-welded end tanks, Nocolok-brazed core, billet machined filler neck\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional accessory port:\u003c\/strong\u003e M14-1.25 thread for aftermarket sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission:\u003c\/strong\u003e Manual transmission only (no internal trans cooler)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eSpecifications for the GD chassis VH091672:\u003c\/p\u003e\n\n\u003cul style=\"text-align: left; list-style-position: outside; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore:\u003c\/strong\u003e 36mm Hyper V-Core, full aluminium construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Core depth 1.40\", core height 13.40\", core width 25.50\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 11.8 lbs (~5.4kg)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Hand TIG-welded end tanks, Nocolok-brazed core, billet filler neck and 1\/8 PT accessory port (plug included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission:\u003c\/strong\u003e Manual transmission only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\n\u003cp\u003eThe KOYORAD installs into the factory radiator position using OEM mounting points, OEM fan shroud bolt pattern and OEM hose locations. No cutting, no bracket modification, no relocation of supporting components.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTwo practical things to know:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e1. Upper radiator hose may require trimming.\u003c\/strong\u003e Because the Hyper V-Core sits in a slightly different position than the OEM radiator (mounting points are identical, but the thicker core changes the effective face of the radiator), the upper coolant hose sometimes needs to be shortened by 5–15mm for proper clearance. This is a 30-second cut with a fresh blade and is far less invasive than the modifications other thick-core radiators sometimes require.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e2. Fan mounting clearance with aftermarket charge piping.\u003c\/strong\u003e The Hyper V-Core's fan mounting points sit roughly 12mm further forward than OEM. On cars with large-diameter aftermarket cold-side charge pipes routing past the passenger-side fan, the passenger fan can foul against the charge pipe. The fix is to remove the intercooler and charge pipe during fan installation, then reinstall the boost plumbing — five extra minutes during the install and you avoid the problem entirely.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e3. Radiator cap not included.\u003c\/strong\u003e The KOYORAD ships without a cap because cap pressure ratings vary by build target. Most Subaru owners reuse the OEM cap (which fits the KOYORAD's filler neck), but for tuned or track cars we recommend the higher-pressure KOYORAD SK-C13 1.3 Bar cap as an upgrade.\u003c\/p\u003e\n\n\u003ch2\u003eHow the WRX\/STI KOYORAD Compares to Alternatives\u003c\/h2\u003e\n\n\u003cp\u003eThe two main competing brands in the AU market for these chassis are Mishimoto and CSF. Here's the honest comparison for the Subaru specifically.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003evs Mishimoto:\u003c\/strong\u003e Both are excellent radiators. KOYORAD's hand TIG-welded construction and Japanese engineering oversight is meaningful for buyers who value manufacturing detail. Mishimoto's lifetime warranty + accident protection is the strongest in the market and matters if long-term coverage is your priority. Pricing is broadly comparable on this platform.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003evs CSF:\u003c\/strong\u003e CSF makes a strong WRX\/STI radiator with their newest fin technology. Less common in the AU market than KOYORAD or Mishimoto. For the EJ platforms, KOYORAD's decades of Subaru-specific fitment experience is reflected in the install quality.\u003c\/p\u003e\n\n\u003cp\u003eFor a more detailed cross-brand comparison, see our \u003ca href=\"\/blogs\/news\/koyorad-vs-mishimoto-vs-csf-radiator-comparison\"\u003eKOYORAD vs Mishimoto vs CSF buyer's guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eBuild Path — Where the Radiator Fits\u003c\/h2\u003e\n\n\u003cp\u003eFor most Subaru WRX\/STI owners, the radiator upgrade earns its place at one of three points in a build:\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStage 0 — OEM radiator failure.\u003c\/strong\u003e If your factory radiator is showing signs of plastic-tank failure (weeping coolant, hairline cracks at the seam, slow coolant loss), replacing it with the KOYORAD is significantly better than replacing it with another OEM-spec unit. The aluminium construction means it won't fail again, and the upgrade is permanent. This is the most common reason GD-chassis owners install a KOYORAD.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStage 1 — Stock turbo, supporting mods, no tune.\u003c\/strong\u003e If you're running the factory tune with bolt-on supporting mods (intake, downpipe, exhaust), the radiator probably isn't the most urgent upgrade — but it's a meaningful long-term investment. Adds cooling headroom for any future tuning.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStage 2 — Tuned car, street\/track use.\u003c\/strong\u003e Once you're running a proper tune (Cobb Accessport, EcuTek, OpenSource), the factory radiator becomes the bottleneck on hot days and at the track. The KOYORAD upgrade restores proper cooling headroom and lets the tune deliver its full power consistently.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStage 3 — Built motor, big turbo, serious power.\u003c\/strong\u003e At this point the KOYORAD is non-negotiable, and you should also be looking at supporting fuel system upgrades and possibly an external oil cooler for genuinely demanding use.\u003c\/p\u003e\n\n\u003ch2\u003eSupporting Mods for the Subaru WRX\/STI\u003c\/h2\u003e\n\n\u003cp\u003eThe radiator handles cooling — for the rest of the Subaru build, pair with the Chicane Australia Subaru range:\u003c\/p\u003e\n\n\u003cul style=\"text-align: left; list-style-position: outside; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrakes:\u003c\/strong\u003e \u003ca href=\"\/collections\/dixcel\"\u003eDIXCEL\u003c\/a\u003e brake pads for street and track WRX\/STI use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuspension:\u003c\/strong\u003e \u003ca href=\"\/collections\/hardrace\"\u003eHardrace\u003c\/a\u003e control arms, bushings and supporting suspension components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust:\u003c\/strong\u003e \u003ca href=\"\/collections\/korsh\"\u003eKORSH\u003c\/a\u003e catbacks and downpipes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel system:\u003c\/strong\u003e \u003ca href=\"\/collections\/injector-dynamics\"\u003eInjector Dynamics\u003c\/a\u003e injectors for E85 and big-power builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShop the Full KOYORAD Range\u003c\/h3\u003e\n\u003cp\u003e\n\u003ca href=\"\/collections\/koyorad\"\u003eKOYORAD main collection\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"\/collections\/koyorad-nissan-skyline-r32-r33-r34\"\u003eKOYORAD for Nissan Skyline R32 \/ R33 \/ R34\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"\/collections\/koyorad-toyota-86-subaru-brz-gr86\"\u003eKOYORAD for Toyota 86 \/ Subaru BRZ \/ GR86\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eNeed help choosing the right KOYORAD for your Subaru? \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e or email \u003ca href=\"mailto:sales@chicaneaustralia.com.au\"\u003esales@chicaneaustralia.com.au\u003c\/a\u003e — we know the EJ and FA platforms and we'll spec the right radiator for your build.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"CollectionPage\",\n      \"@id\": \"https:\/\/www.chicaneaustralia.com.au\/collections\/koyorad-subaru-wrx-sti#collectionpage\",\n      \"url\": \"https:\/\/www.chicaneaustralia.com.au\/collections\/koyorad-subaru-wrx-sti\",\n      \"name\": \"KOYORAD Radiator for Subaru WRX \u0026 STI (GD GR GV VA)\",\n      \"description\": \"Authorised Australian KOYORAD source. Hyper V-Core 36mm aluminium radiators for Subaru WRX \u0026 STI 2002-2021 across GD, GR, GV and VA chassis. Direct-fit, Japanese-engineered.\",\n      \"isPartOf\": {\n        \"@id\": \"https:\/\/www.chicaneaustralia.com.au\/#website\"\n      },\n      \"about\": {\n        \"@id\": \"https:\/\/www.chicaneaustralia.com.au\/collections\/koyorad-subaru-wrx-sti#brand\"\n      }\n    },\n    {\n      \"@type\": \"Brand\",\n      \"@id\": \"https:\/\/www.chicaneaustralia.com.au\/collections\/koyorad-subaru-wrx-sti#brand\",\n      \"name\": \"KOYORAD\",\n      \"alternateName\": \"Koyo Radiator\",\n      \"description\": \"KOYORAD is one of the world's leading manufacturers of performance aluminium radiators. Established in 1956 in Nagoya, Japan as Ejiri Radiator, the company has nearly seven decades of experience in cooling system engineering. All KOYORAD performance radiators are designed and engineered at the company's head office in Nagoya, Japan, and manufactured in KOYORAD's wholly-owned ISO 9001 certified facility in Indonesia under Japanese engineering oversight, with hand TIG-welded end tanks and Nocolok-brazed aluminium cores.\",\n      \"foundingDate\": \"1956\",\n      \"foundingLocation\": \"Nagoya, Japan\",\n      \"url\": \"https:\/\/koyorad.com\"\n    },\n    {\n      \"@type\": \"BreadcrumbList\",\n      \"itemListElement\": [\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 1,\n          \"name\": \"Home\",\n          \"item\": \"https:\/\/www.chicaneaustralia.com.au\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 2,\n          \"name\": \"KOYORAD\",\n          \"item\": \"https:\/\/www.chicaneaustralia.com.au\/collections\/koyorad\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 3,\n          \"name\": \"KOYORAD for Subaru WRX \u0026 STI\",\n          \"item\": \"https:\/\/www.chicaneaustralia.com.au\/collections\/koyorad-subaru-wrx-sti\"\n        }\n      ]\n    }\n  ]\n}\n\u003c\/script\u003e","products":[{"product_id":"koyorad-hyper-v-series-aluminium-racing-radiator-subaru-impreza-wrx-wrx-sti-gc8-gf8","title":"Koyorad Hyper V-Series Aluminium Racing Radiator - Subaru Impreza WRX \/ WRX STI (GC8\/GF8)","description":"\u003ch2\u003eKoyorad Hyper V-Series Aluminium Racing Radiator - Subaru Impreza WRX \/ WRX STI (GC8\/GF8)\u003c\/h2\u003e\n\n\u003cp\u003eUpgrade your \u003cstrong\u003eSubaru Impreza WRX\u003c\/strong\u003e or \u003cstrong\u003eWRX STI\u003c\/strong\u003e's cooling system with the Koyorad Hyper V-Series all-aluminium racing radiator, designed and built in Japan by one of the most respected names in performance cooling. Koyorad has been supplying OEM and motorsport cooling solutions for decades, with the Hyper V-Series representing the latest evolution of their all-aluminium racing radiator line-up.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHyper V-Core 36mm\u003c\/strong\u003e design was developed specifically for vehicles operating under extreme thermal load in space-constrained engine bays. The specially designed fin and tube pitch significantly increases internal surface area while maintaining excellent air circulation through the core, delivering substantially improved cooling capacity over the standard OEM unit. This is a direct bolt-in upgrade that retains the factory fan shrouds, fans, inlet\/outlet locations, and top\/bottom mounting pins.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eHyper V-Core 36mm thick all-aluminium core\u003c\/li\u003e\n  \u003cli\u003eDirect bolt-in replacement - no engine bay modifications required\u003c\/li\u003e\n  \u003cli\u003eRetains factory fan shrouds, fans, and mounting hardware\u003c\/li\u003e\n  \u003cli\u003eNocolok brazed construction for maximum durability and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eHeliarc hand-welded aluminium-to-aluminium construction\u003c\/li\u003e\n  \u003cli\u003eBillet precision-machined filler neck for strength and improved sealing\u003c\/li\u003e\n  \u003cli\u003eSpecially designed fin and tube pitch for increased surface area\u003c\/li\u003e\n  \u003cli\u003eOE-specific mounting locations for quick installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eKoyorad Part Number: VH090302\u003c\/li\u003e\n  \u003cli\u003eCore Type: Hyper V-Core 36mm\u003c\/li\u003e\n  \u003cli\u003eConstruction: All-Aluminium\u003c\/li\u003e\n  \u003cli\u003eOEM Cross-Reference: Subaru 45111AA170 \/ 45111AA240 \/ 45111AA260\u003c\/li\u003e\n  \u003cli\u003eTransmission: Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Installation Notes\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThis radiator is designed for \u003cstrong\u003emanual transmission vehicles\u003c\/strong\u003e. Automatic transmission vehicles will require an external transmission cooler.\u003c\/li\u003e\n  \u003cli\u003eDirect bolt-in fitment - no modifications required for installation on the listed vehicles.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation recommended for correct coolant filling, bleeding, and system verification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eVehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year, transmission, and engine configuration are confirmed before ordering.\u003c\/p\u003e\n\n\u003cp\u003eNot sure if this radiator suits your build? Contact our team at \u003ca href=\"mailto:sales@chicaneaustralia.com.au\"\u003esales@chicaneaustralia.com.au\u003c\/a\u003e for expert advice.\u003c\/p\u003e","brand":"Koyorad","offers":[{"title":"Default Title","offer_id":52342781870373,"sku":"VH090302","price":770.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0918\/2943\/6709\/files\/c7043480730de03a83549d52a6c514c7.jpg?v=1778480913"},{"product_id":"koyorad-aluminium-racing-radiator-subaru-wrx-sti-grb-gvb-va","title":"Koyorad Aluminium Racing Radiator - Subaru WRX\/STI (GRB\/GVB\/VA)","description":"\u003ch2\u003eKoyorad Aluminium Racing Radiator - Subaru WRX\/STI (GRB\/GVB\/VA)\u003c\/h2\u003e\n\n\u003cp\u003eKoyo's racing radiators are built for exactly the kind of heat cycles that push a factory cooling system to its limits. Where most OEM radiators rely on plastic tanks that crack and weep over time, Koyo constructs this unit entirely from aluminium — giving you a radiator that can actually be repaired if damaged, and one that will outlast the car it's fitted to. A thicker core, precise tube and fin alignment, and NoClock furnace brazing throughout make this a serious upgrade for any \u003cstrong\u003eSubaru WRX\u003c\/strong\u003e or \u003cstrong\u003eSTI\u003c\/strong\u003e owner running their car hard.\u003c\/p\u003e\n\n\u003cp\u003eThis listing covers the Koyo Aluminium Racing Radiator (manual transmission) for the \u003cstrong\u003e2008–2021 Subaru WRX\/STI\u003c\/strong\u003e, including the \u003cstrong\u003eGRB\u003c\/strong\u003e, \u003cstrong\u003eGVB\u003c\/strong\u003e, and \u003cstrong\u003eVA\u003c\/strong\u003e chassis platforms.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This radiator is designed for manual transmission vehicles only. It is not compatible with automatic transmission applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFull aluminium construction — stronger and more repairable than OEM plastic-tank radiators\u003c\/li\u003e\n  \u003cli\u003eHeli-arc welded aluminium connections for added structural integrity\u003c\/li\u003e\n  \u003cli\u003eThicker core for improved heat dissipation under sustained load\u003c\/li\u003e\n  \u003cli\u003ePrecise tube and fin alignment for optimal coolant flow and heat transfer efficiency\u003c\/li\u003e\n  \u003cli\u003eNoClock furnace brazing on tubes, fins, headers and brackets — bonds all components to resist vibration, road debris and the elements\u003c\/li\u003e\n  \u003cli\u003eBillet filler neck precision machined for long term durability\u003c\/li\u003e\n  \u003cli\u003eManual transmission fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eVehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year, trim level, and transmission type are confirmed before ordering.\u003c\/p\u003e\n\n\u003cp\u003eNot sure if this radiator suits your build? Contact our team at \u003ca href=\"mailto:sales@chicaneaustralia.com.au\"\u003esales@chicaneaustralia.com.au\u003c\/a\u003e for expert advice.\u003c\/p\u003e","brand":"Koyorad","offers":[{"title":"Default Title","offer_id":52342792847653,"sku":"VH091662","price":895.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0918\/2943\/6709\/files\/e351f690f1de5c100b389eedf1ff7125.jpg?v=1778481148"},{"product_id":"koyorad-aluminium-performance-radiator-subaru-wrx-vb","title":"Koyorad Aluminium Performance Radiator - Subaru WRX (VB)","description":"\u003ch2\u003eKoyorad Aluminium Performance Radiator - Subaru WRX (VB)\u003c\/h2\u003e\n\n\u003cp\u003eKoyorad has been manufacturing high quality aluminium radiators for motorsport and performance applications for decades, and this unit brings that same engineering to the \u003cstrong\u003eSubaru WRX\u003c\/strong\u003e. If your WRX sees regular hard driving — track days, mountain roads, or just hot Australian summers — this is a meaningful upgrade over the factory radiator.\u003c\/p\u003e\n\n\u003cp\u003eThis listing covers the \u003cstrong\u003e2022–2025 Subaru WRX\u003c\/strong\u003e (\u003cstrong\u003eVB\u003c\/strong\u003e chassis). Please confirm your model year before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFully welded aluminium construction — eliminates plastic end tanks found on the OEM unit\u003c\/li\u003e\n\u003cli\u003eDirect OEM replacement fitment — no modifications required\u003c\/li\u003e\n\u003cli\u003eImproved thermal efficiency under sustained high load conditions\u003c\/li\u003e\n\u003cli\u003eBrushed aluminium finish for a clean, motorsport-inspired look\u003c\/li\u003e\n\u003cli\u003eSuperior resistance to heat and pressure compared to factory radiator\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the \u003cstrong\u003eVB\u003c\/strong\u003e platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eVehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year, trim level, and configuration are confirmed before ordering.\u003c\/p\u003e\n\n\u003cp\u003eNot sure if this radiator suits your build? Contact our team at \u003ca href=\"mailto:sales@chicaneaustralia.com.au\"\u003esales@chicaneaustralia.com.au\u003c\/a\u003e for expert advice.\u003c\/p\u003e","brand":"Koyorad","offers":[{"title":"Default Title","offer_id":52342797664549,"sku":"VH093890","price":945.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0918\/2943\/6709\/files\/koyo-aluminum-racing-radiator-2022-2025-wrx-vh093890-3037937_896x896_090a1ded-6afe-4cfb-95f8-737c894edb9d.webp?v=1778481343"},{"product_id":"koyorad-aluminium-racing-radiator-subaru-wrx-sti-gd-gg","title":"Koyorad Aluminium Racing Radiator - Subaru WRX\/STI (GD\/GG)","description":"\u003ch2\u003eKoyorad Aluminium Racing Radiator - Subaru WRX\/STI (GD\/GG)\u003c\/h2\u003e\n\n\u003cp\u003eKoyo has built a strong reputation in motorsport cooling, and this aluminium racing radiator is a solid upgrade for anyone pushing their \u003cstrong\u003eSubaru WRX or STI\u003c\/strong\u003e harder than the factory cooling system was designed to handle. All aluminium construction means better heat dissipation, genuine repairability, and none of the long term cracking concerns that come with factory plastic tank radiators under repeated heat cycles.\u003c\/p\u003e\n\n\u003cp\u003eThis listing covers the \u003cstrong\u003e2001–2007 Subaru WRX \/ STI (GD\/GG chassis)\u003c\/strong\u003e, manual transmission only. SKU: VH091672.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This radiator is compatible with manual transmission vehicles only. The upper radiator hose may require trimming for correct clearance. Early model WRX owners should confirm their stock radiator has a radiator cap — early WRX models without a radiator cap require the 2002 WRX radiator instead.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFull aluminium construction — no plastic tanks to crack or degrade over time\u003c\/li\u003e\n  \u003cli\u003eHeli-arc welded joints for reinforced strength at all aluminium connections\u003c\/li\u003e\n  \u003cli\u003eThicker core for increased coolant volume and heat transfer capacity\u003c\/li\u003e\n  \u003cli\u003ePrecise tube and fin alignment for optimal coolant flow and heat dissipation\u003c\/li\u003e\n  \u003cli\u003eNoClock furnace brazing on tubes, fins, headers, and brackets — resists vibration, road debris, and corrosion\u003c\/li\u003e\n  \u003cli\u003eBillet filler neck precision machined for durability\u003c\/li\u003e\n  \u003cli\u003e1\/8PT female accessory fitting included, supplied with a threaded plug\u003c\/li\u003e\n  \u003cli\u003eManual transmission fitment only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eVehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year, transmission type, and configuration are confirmed before ordering.\u003c\/p\u003e\n\n\u003cp\u003eNot sure if this radiator suits your build? Contact our team at \u003ca href=\"mailto:sales@chicaneaustralia.com.au\"\u003esales@chicaneaustralia.com.au\u003c\/a\u003e for expert advice.\u003c\/p\u003e","brand":"Koyorad","offers":[{"title":"Default Title","offer_id":52342801629477,"sku":"VH091672","price":860.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0918\/2943\/6709\/files\/9704d586cb2e96edf26845e7910fc613.jpg?v=1778481462"}],"url":"https:\/\/www.chicaneaustralia.com.au\/collections\/koyorad-subaru-wrx-sti.oembed","provider":"Chicane Australia","version":"1.0","type":"link"}