{"product_id":"perrin-02-21-subaru-wrx-04-21-sti-air-oil-separator-black","title":"Perrin Air Oil Separator V2 Black 2002-2021 WRX \/ 2004-2021 STi","description":"\u003ch3\u003ePerrin Air Oil Separator V2 Black 2002-2021 WRX \/ 2004-2021 STi | Ceramic-Coated CNC Machined | Engine Health Component\u003c\/h3\u003e\n\n\u003ch4\u003eOverview\u003c\/h4\u003e\n\u003cp\u003eThe Perrin Air Oil Separator (AOS) V2 is a precision-engineered solution designed to capture oil vapors from the crankcase gases before they reach the intake manifold on Subaru WRX and WRX STI models spanning 2002 to 2021. By efficiently separating oil from the blow-by gases, this component helps prevent carbon buildup inside the intake tract, a common issue that can compromise engine performance and longevity. This product is ideal for Subaru enthusiasts who prioritize engine cleanliness and reliability, especially those with modified or high-mileage engines seeking to maintain optimal running conditions.\u003c\/p\u003e\n\u003cp\u003eCrafted with a ceramic-coated, CNC-machined aluminum body, the Perrin AOS combines durability with functional design. The ceramic coating reduces oil adhesion inside the separator, enhancing its efficiency and resistance to corrosion. Perrin’s approach emphasizes robust construction and precise fitment, ensuring that the AOS integrates seamlessly with Subaru’s PCV system while delivering consistent performance benefits.\u003c\/p\u003e\n\u003cp\u003eInstalling the Perrin Air Oil Separator offers tangible advantages such as reduced intake manifold contamination, improved throttle response, and potentially extended engine life by minimizing harmful oil vapor ingestion. For WRX and STI owners, this means less frequent intake cleaning, better engine health, and a more reliable driving experience whether on the street or during spirited driving sessions.\u003c\/p\u003e\n\n\u003ch4\u003eFeatures \u0026amp; Specifications\u003c\/h4\u003e\n\u003cp\u003eThis Perrin Air Oil Separator is engineered specifically for Subaru WRX and WRX STI models from 2002 to 2021 and features a ceramic-coated, CNC-machined aluminum construction. Designed to reduce carbon buildup and improve engine health, it delivers reliable crankcase ventilation management for Subaru enthusiasts seeking enhanced engine longevity and cleanliness.\u003c\/p\u003e\n\u003cul style=\"list-style:none;padding:0;margin:0;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Perrin Performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Air Oil Separator V2 Black 2002-2021 WRX \/ 2004-2021 STi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e PSP-ENG-620BK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 2002-2003 WRX, 2004-2005 STI, 2004-2005 WRX, 2006-2007 STI, 2006-2007 WRX, 2008-2010 STI, 2008-2010 WRX, 2011-2014 STI, 2011-2014 WRX, 2015-2021 STI, 2015-2021 WRX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC-machined aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black ceramic coating\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e CNC machined, ceramic coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eKey Benefits\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine Health:\u003c\/strong\u003e Effectively reduces oil vapor ingestion to minimize carbon buildup in the intake manifold and valves, preserving engine performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Ceramic coating protects against corrosion and oil residue buildup, ensuring long-lasting, reliable operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Direct bolt-on design tailored specifically for WRX and STI models from 2002 to 2021 for seamless integration without modifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintenance:\u003c\/strong\u003e Helps extend intervals between intake cleaning, reducing maintenance time and costs for Subaru owners.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Supports consistent engine operation by maintaining cleaner intake air pathways, which can improve throttle response.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuality:\u003c\/strong\u003e Precision CNC machining guarantees tight tolerances and reliable sealing, critical for effective crankcase ventilation management.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Perrin Air Oil Separator V2 Black 2002-2021 WRX \/ 2004-2021 STi\u003c\/li\u003e\n  \u003cli\u003eMounting hardware\u003c\/li\u003e\n  \u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp\u003eInstallation of the Perrin Air Oil Separator is straightforward and DIY-friendly for enthusiasts with basic mechanical skills. It requires no special tools beyond standard hand tools and installs as a direct bolt-on replacement for the factory PCV system components on compatible WRX and STI models. No engine tuning or additional modifications are necessary after installation. It is recommended to verify fitment against your specific model year and trim to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfessional Installation:\u003c\/strong\u003e DIY-friendly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModifications Required:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVerify Compatibility:\u003c\/strong\u003e Confirm fitment for your specific year and trim level\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShop with confidence at Subimods—your Subaru parts specialists.\u003c\/p\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":46672027156655,"sku":"PSP-ENG-620BK","price":396.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/3598\/4815\/files\/perrin-air-oil-separator-v2-black-2002-2021-wrx-2004-2021-sti-psp-eng-620bk-8027912.jpg?v=1773325638","url":"https:\/\/subimods.com\/products\/perrin-02-21-subaru-wrx-04-21-sti-air-oil-separator-black","provider":"Subimods.com","version":"1.0","type":"link"}