{"product_id":"perrin-performance-air-oil-separator-red-wrx-2023","title":"Perrin Performance Air Oil Separator - Red - WRX (2022+","description":"\u003cdiv class=\"columns large-7\"\u003e\n\u003cp\u003e\u003cstrong\u003ePSP-ENG-622RD - Perrin Performance Air Oil Separator - Red - WRX (2022+)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PERRIN Air Oil Separator prevents oil from entering the intake by capturing it from the crankcase vents. This reduces carbon build-up, improves intercooler efficiency, and lowers the risk of performance-degrading detonation.\u003c\/p\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=1600\" alt=\"Close-up of worn engine cylinder heads with carbon deposits\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_carbon02.jpg?v=1771289750\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1067\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eReduce Carbon Buildup\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003eCrankcase blow-by, made up of oil particles and air, is recirculated into the intake. The PERRIN Air Oil Separator captures the oil before it reaches the intake tract, which helps limit carbon buildup in the valves and combustion chamber. Reducing this buildup helps avoid power loss and lowers wear and tear on the valves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m-1\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=1600\" alt=\"PERRIN Air Oil Separator internal swirl pot design showing oil separation technology.\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Swirl01.jpg?v=1769446079\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1073\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eAdvanced Airflow Separation\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003eThe PERRIN Air Oil Separator uses two internal airflow methods to remove oil from blow-by. The swirling airflow pulls oil particles out of the air, and the internal grooves, curves, turns, and holes create impact points that catch additional oil for efficient separation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m-2\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=1600\" alt=\"PERRIN red Air Oil Separator installed in 2022-2025 Subaru WRX engine bay.\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/PSP-ENG-622RD-02.jpg?v=1770940838\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1067\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eOptimized Placement\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003eThe 2022+ WRX AOS uses a bottom plate designed specifically for this application. It places the unit in an ideal location, maintains proper operating temperature, and keeps the AOS clear of aftermarket intercoolers, charge pipes, master cylinder braces, flex fuel kits, and cold air intakes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m-3\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=1600\" alt=\"\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/5yearold01.jpg?v=1759275127\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1069\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eExplain like I'm 5\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003eThe PERRIN Air Oil Separator isn’t like a catch can. A catch can is like a little cup that fills up with yucky engine stuff, and you have to empty it all the time. An Air Oil Separator is smarter, it separates the oil from the air and sends the oil back into the engine, so you don’t have to keep checking and draining it.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m-4\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=1600\" alt=\"PERRIN Air Oil Separator coolant heating system with integrated hose connections.\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_heatedbycoolant01.jpg?v=1769446126\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1073\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eWarmed for Proper Vapor Separation\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003eCoolant heats both the top and bottom of the PERRIN AOS, keeping the body at the same temperature as incoming blow-by. This reduces condensation, prevents sludge buildup, and helps oil, air, and water vapor separate. This vital feature eliminates nearly all the sludge that can build up in the air oil separator body, which is a common problem with catch cans and other air oil separators.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m-5\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=1600\" alt=\"\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_easy.gif?v=1771435669\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1067\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eServiceable by Design\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003eThe PERRIN AOS is virtually maintenance free but can be opened with a single bolt when cleaning is needed. This simple design gives quick access to the internal surfaces so any residue can be wiped out easily.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m-6\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=1600\" alt=\"Oil residue on top-mount intercooler showing need for PERRIN Air Oil Separator.\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Efficiency01.gif?v=1771353156\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1066\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eIntercooler Efficiency\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003eKeeping oil out of the intake and intercooler is essential for maintaining efficient heat transfer. Oil buildup inside the intercooler reduces its ability to dissipate heat effectively, leading to higher intake air temperatures (IAT).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m-7\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=1600\" alt=\"\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_oil.jpg?v=1772046635\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1065\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eOil Vapor Costs You Power\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003ePreventing oil from entering the combustion chamber is critical for maintaining engine performance. When oil enters the chamber, it lowers the effective octane rating of the fuel mixture, which can reduce horsepower and increase the risk of detonation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m-8\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=1600\" alt=\"PERRIN Air Oil Separator precision CNC machined billet aluminum construction.\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Machining01.jpg?v=1769446555\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1067\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eIn-House Machining, Superior Durability\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003eAll major components of the PERRIN Air Oil Separator are CNC machined in-house from 6061-T6 aluminum for superior durability and long lasting performance.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m-9\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=1600\" alt=\"PERRIN Air Oil Separator showing black anodized finish and billet aluminum construction\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Finish01.jpg?v=1769446161\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1067\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eCeramic Coated for Maximum Durability\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003eThe PERRIN Air Oil Separator features a ceramic coated finish rated for more than 500°F. Harder than powder coat, the finish is scratch resistant, extremely durable, and acts as a thermal barrier that helps retain heat in the AOS to reduce moisture buildup that can lead to sludge. It also provides strong chemical resistance, so engine oil, blow-by, and other chemicals will not affect the finish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m-10\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=1600\" alt=\"\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Clamps01.jpg?v=1771256695\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1067\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eTwo Clamp Styles Included\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003eEach PERRIN AOS includes two styles of stainless steel hose clamps. Choose between low profile or screw drive clamps to match your preference. Unlike standard clamps, these stainless steel options resist rust and are built to last the life of your vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"block-template--26228084048172__custom_product_feature_blocks_pHJFdM-item_kmmD7m-11\" class=\"multi-column__item multi-column__item--align-start\"\u003e\n\u003cdiv class=\"multi-column__image-wrapper\"\u003e\u003cimg src=\"https:\/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=1600\" alt=\"\" srcset=\"\/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=200 200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=300 300w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=400 400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=500 500w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=600 600w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=700 700w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=800 800w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=900 900w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=1000 1000w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=1100 1100w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=1200 1200w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=1400 1400w, \/\/perrin.com\/cdn\/shop\/files\/AOS_Connectors01.jpg?v=1771256694\u0026amp;width=1600 1600w\" width=\"1600\" height=\"1067\" loading=\"lazy\" sizes=\"(max-width: 740px) calc(100vw - 48px), (max-width: 999px) calc(25vw - 80px), 960px\" class=\"multi-column__image\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"multi-column__text-container text--center text-container\"\u003e\n\u003cp class=\"heading h6\"\u003eDurable Aluminum Connectors, Not Plastic\u003c\/p\u003e\n\u003cdiv class=\"metafield-rich_text_field\"\u003e\n\u003cp\u003eAll PERRIN AOS hose attachment points use CNC machined aluminum fittings. Unlike plastic fittings, they will not snap during installation or fail over time. Each fitting is machined in house and anodized for corrosion resistance and long term durability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Perrin","offers":[{"title":"Default Title","offer_id":53426004525363,"sku":null,"price":378.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0256\/5855\/6497\/files\/PSP-ENG-622RD_01.webp?v=1780532311","url":"https:\/\/www.circuitspecr.com\/products\/perrin-performance-air-oil-separator-red-wrx-2023","provider":"Circuit Spec R","version":"1.0","type":"link"}