{"product_id":"cobb-subaru-15-21-wrx-sti-coolant-overflow-tank","title":"Cobb Subaru 15-21 WRX\/STI Coolant Overflow Tank","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eB800660\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 700424680634\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCobb Subaru 15-21 WRX\/STI Coolant Overflow Tank\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe COBB Coolant Overflow Tank serves as a direct-fit replacement for the factory plastic reservoir on 2015-2021 Subaru WRX and STI models. Constructed from durable billet aluminum, it holds 50% more coolant than stock (1.5L capacity) to handle demanding track or street use. Internal baffling minimizes sloshing for consistent cooling performance during hard driving.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet Aluminum Build:\u003c\/strong\u003e Resists cracking and corrosion far better than OEM plastic, ensuring long-term reliability in high-heat conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50% Increased Capacity:\u003c\/strong\u003e Provides extra coolant volume (1.5L vs. OEM ~1L) to prevent overflow and maintain system pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Baffling:\u003c\/strong\u003e Reduces fluid movement and air pockets, promoting stable temperatures under boost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser-Etched COBB Logo:\u003c\/strong\u003e Adds clean styling while maintaining functional strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes aluminum cap, stainless steel hardware, and O-ring seals for plug-and-play installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDirect replacement for OEM part numbers 21214FJ000 and 21214FJ00A.\u003c\/li\u003e\n\u003cli\u003eFlush and refill cooling system during install use Subaru Super Coolant.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eBolt-on fit requires basic hand tools 30-45 minutes for experienced installers.\u003c\/li\u003e\n\u003cli\u003eHardware included no chassis modifications or trimming needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX\u003c\/td\u003e\n\u003ctd\u003eLimited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX\u003c\/td\u003e\n\u003ctd\u003ePremium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eSTI\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eSTI\u003c\/td\u003e\n\u003ctd\u003eLimited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhy Choose COBB?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDecades of Subaru engineering experience from rally and track programs.\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-machined parts tested in real-world high-performance applications.\u003c\/li\u003e\n\u003cli\u003eU.S.-made quality with lifetime warranty against defects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit my 2018 WRX Premium?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, direct bolt-on for all 2015-2021 VA-chassis WRX and STI models, no modifications required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is used and does it include the cap?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Billet 6061-T6 aluminum construction with black anodized finish kit includes vented cap, fittings, and hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty and install difficulty?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Lifetime limited warranty straightforward DIY with basic tools, though pros advised for cooling system bleeding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Foam-padded cardboard box, 10\" x 7\" x 6\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.1 lbs (product) 2 lbs (shipping)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"COBB","offers":[{"title":"Default Title","offer_id":43917277134927,"sku":"COBB800660","price":290.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/cobb-subaru-15-21-wrxsti-coolant-overflow-tank-cobb-5.jpg?v=1765924377","url":"https:\/\/www.blackopsautoworks.com\/products\/cobb-subaru-15-21-wrx-sti-coolant-overflow-tank","provider":"Black Ops Auto Works","version":"1.0","type":"link"}