{"product_id":"radium-direct-fit-heated-aos-r-kit-subaru-ej-turbo","title":"Radium - Direct-Fit Heated AOS-R Kit for Subaru EJ Turbo","description":"\u003cp\u003eThe \u003cstrong\u003eRadium Engineering Direct-Fit Heated Air-Oil Separator Return (AOS-R) Kit for Subaru EJ Turbo\u003c\/strong\u003e is the definitive crankcase breather solution for 2008–2021 Subaru WRX and STI engines. Specifically tailored to mount cleanly on the Subaru pitch-stop or strut tower, this system circulates engine coolant through the AOS body to eliminate condensation, while returning clean engine oil straight back into the oil pan.\u003c\/p\u003e\n\n\u003ch3\u003eKey Performance Features:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSubaru Boxer Tailored Integration:\u003c\/strong\u003e Eliminates oil contamination across the turbo inlet pipe, throttle body, and intercooler core without manual maintenance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrevents Water Contamination:\u003c\/strong\u003e Integrated coolant heating jacket keeps separator temperatures high enough to boil off blow-by water vapors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Bolt-On Bracketry:\u003c\/strong\u003e Application-specific powdercoated steel brackets mount securely utilizing OEM engine bay provisions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-Crimped Coolant \u0026amp; Oil Lines:\u003c\/strong\u003e Includes pre-cut molded coolant hoses, PCV hoses, and oil drain return adapter fittings.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRaises Effective Octane:\u003c\/strong\u003e Keeping oil mist out of the intake air prevents oil-induced engine detonation under peak boost.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eVehicle \u0026amp; Engine Compatibility:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2008–2014 Subaru WRX (GR \/ GV) - 2.5L EJ255\u003c\/li\u003e\n  \u003cli\u003e2008–2021 Subaru WRX STI (GR \/ GV \/ VA) - 2.5L EJ257\u003c\/li\u003e\n  \u003cli\u003e2009–2013 Subaru Forester XT - 2.5L EJ255\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNotice: Completely closed-loop system retains full emissions functionality and eliminates cockpit fuel and oil odors.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cdiv class=\"dm-motorsport-notice\" style=\"border-left: 3px solid #e11d48; background: rgba(225, 29, 72, 0.05); padding: 12px 16px; margin: 20px 0; border-radius: 4px; font-size: 0.9em; color: #881337;\"\u003e\n  \u003cstrong\u003eNotice:\u003c\/strong\u003e This product is designed and intended strictly for off-road closed-course motorsport competition and racing vehicles.\n\u003c\/div\u003e","brand":"Radium Engineering","offers":[{"title":"Direct-Fit Heated AOS-R System (08-21 WRX\/STI \/ 09-13 FXT)","offer_id":50518301376670,"sku":"20-0607","price":652.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6460\/0734\/files\/radium-subaru-ej-aos-r-kit-20-0607.jpg?v=1790117351","url":"https:\/\/dm-performance.ca\/products\/radium-direct-fit-heated-aos-r-kit-subaru-ej-turbo","provider":"DM Performance","version":"1.0","type":"link"}