Perrin Aos, Perrin check valve Hi everyone, I’m looking
Perrin Aos, Perrin check valve Hi everyone, I’m looking for a AOS for my stock new WRX 2020 CVT, and found people mostly recommended IAG IAG AOS and Perrin AOS Perrin AOS . As opposed the the Crawford unit where it closes the PCV port, the Perrin one comes with a small white PCV check valve, or 1-way valve, call it whatever you want, that's need to be connected to the PCV port just below the throttle body on the manifold. Oil entering from the crankcase vents spins counter clockwise through the entire body of the AOS, passing along four walls equaling roughly 50. I’ve been reading mixed opinions about installing an AOS DETAILED Mod List: Perrin cold air intake with heatshield Remark cat-back exhaust Perrin AOS You can get this parts package WITH the matching Protune for your COBB accessport at Import Image Racing. Also the Perrin AOS helps prevent freezing in the third leg of the ccv/pcv loops: the right head ccv line to the turbo sump. I have a question for those who run the Perrin AOS, or any other similar one, in cold climate: have you encountered any issues during longer winter drives? Particularly with the oil return line freezing. 8K subscribers 339 Discover the Perrin Air Oil Separator Kit for WRX, STI, Legacy GT, and Outback XT. Jul 3, 2025 ยท PERRIN Air Oil Separators feature an advanced design that improves the collection of oil from the crank case vents and reduces maintenance of the canister. Catch Can/AOS Recommendations FA Series Factory 2. The PERRIN Air Oil Separator prevents oil from entering the intake by capturing it from the crankcase vents. 5K subscribers 230 Perrin 22-23 Toyota GR86 / 13-16 Scion FR-S / 13-23 Subaru BRZ Air Oil Separator - Red. Some… Discover the top 5 upgrades for your Toyota GR86 to enhance its looks, performance, and handling. An overview of my Perrin AOS installed in my 2015 WRX STI at 200 miles. This deletes the plastic fitting in the blowby diagnostic connector for an aluminum AOS oil drain fitting which should be hotter. 25 sq/in of surface area. /r/WRX is a place for Subaru fanatics to show off their rides, discuss modifications… The IAG might filter a tad better with the increased surface area but the Perrin definitely isn’t lacking by any means. Registration is free, fast and simple, so please If you UPDATE: Just heard back from Perrin, these will begin shipping in the next couple of weeks with a price of $470, so a bit less than their other kits!Here I l Shop Subaru Air Oil Separators from IAG Performance, Perrin, and Radium Engineering for BRZ, WRX, and STI to control blow-by and protect your engine. The PERRIN Air Oil Separator traps oil from the crank case vents before it enters the intake, reduces carbon build-up, increases intercooler efficiency, which reduces the chance of performance-robbing detonation. The IAG might filter a tad better with the increased surface area but the Perrin definitely isn’t lacking by any means. I run a catch can, and is not needed to be emptied too often (typically you don't get a ton of blow by oil unless you are running very high HP set ups). Hey Guys need some advice. The Perrin Air Oil Separator Kit (AOS) Black for the 2022–2024 WRX is designed to help reduce oil vapor from entering the intake tract, keeping the intercooler and intake system cleaner over time. 132K subscribers in the WRX community. How to stop oil blow by issues 2022 2023 2024 Suba The PERRIN AOS separates engine oil from water vapor and allows it to drain back into the engine. What are people saying about CSP? Perrin Perrin PSP-ENG-154HP - 22-25 Subaru WRX Pulley Cover - Hyper Pink (SHORT - For Use w/ AOS) Sale price$8925 $10500 Unit price / Unavailable Perrin PSP-ENG-154HP - 22-25 Subaru WRX Pulley Cover - Hyper Pink (SHORT - For Use w/ AOS) View product Remove Give your entire vehicle a Perrin Performance makeover with their exhaust systems, boost controls, intercoolers and other components. The Perrin air oil separators are compatible with all 2004-2021 Subaru WRX STi’s and 2002-2021 Subaru WRX’s. Just don’t. Whether your car uses an EJ20, EJ25, or even FA20 Perrin has you covered with a bolt in AOS. The PERRIN Air Oil Separator is not a catch can. Hi everyone, I’m looking for a AOS for my stock new WRX 2020 CVT, and found people mostly recommended IAG IAG AOS and Perrin AOS Perrin AOS . 56 votes, 23 comments. Boost intercooler efficiency and reduce carbon buildup with this premium, direct-fit performance. How to install AOS on you VB WRX FA24 oil catch can step by step everything you need to know step by step. Two things that are bothering me. Anyways, where the, not so big, issue I found with the Perrin AOS. Discover the Perrin Air Oil Separator Kit for WRX, STI, Legacy GT, and Outback XT. 3. By joining our community, , you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. PERRIN Performance is a leader in performance parts & car customization products. Some… The Perrin Air Oil Separator Kit (AOS) Neon Yellow for the 2022–2024 WRX combines crankcase air/oil separation with a bright, high-visibility finish that stands out in the engine bay. I'm trying to wrap my head around what this piece does before installing it. I shut off the car… For now, this is only a confirmation of the 2013+ STI and below Perrin TMIC AOS being able to fit in the 2015 WRX STI VA chassis (not sure about the WRX The PERRIN Air Oil Separator traps oil from the crank case vents before it enters the intake, reduces carbon build-up, increases intercooler efficiency, which reduces the chance of performance-robbing detonation. If anyone is interested in getting a AOS, just go with the IAG and save the head ache I feel like for a 400$ AOS kit that the only piece that screws into your engine block should fit the same? I will attach pictures so you can see that the pcv goes in a lot further. com Subaru forum. Customize your Subaru, Honda, Nissan, or Toyota car with PERRIN today! I’ve had a Perrin AOS on my car for a few months now and today on my way home I smelt burnt oil. I feel like for a 400$ AOS kit that the only piece that screws into your engine block should fit the same? I will attach pictures so you can see that the pcv goes in a lot further. First, the TMIC doesn’t sit flush to the Welcome to the . I am now at 2K+ miles and no sign of oil in my intake hose or oil loss, even after s We take a look at the most popular AOS options to find the best one READ: Oil + hot engine = FIRE not to mention blatant oil loss (Perrin Air Oil Seperator Install/Review - Page 3 - NASIOC), more leaks: Leaking perrin AOS - NASIOC New And Improved PERRIN AOS! Perrin Performance The PERRIN AOS now comes standard with CNC Machined Fittings and a updated and improved heated base plate. The Perrin AOS is a MUST Proud to abnounce that we're partnering up with @PERRINPerformance this season! That means we have a bunch of new parts to install! In this video we're inst The PERRIN AOS is available in black or red texture powder coating. Boost intercooler efficiency and reduce carbon buildup with trusted quality. Either the Crawford or Perrin AOS would be ideal for track driven or highly-modified, high boost Subaru WRX/STi's. The PERRIN AOS separates engine oil from water vapor and allows it to drain back into the engine. Subaru Specific Subaru engines have 3 main crank case vents located on each valve cover, and one in the center crank case. Find many great new & used options and get the best deals for Perrin Neon Yellow Air Oil Separator AOS for 2022-2024 Subaru WRX at the best online prices at eBay! Free shipping for many products! The PERRIN AOS separates engine oil from water vapor and allows it to drain back into the engine. Boost intercooler efficiency and reduce carbon buildup with this premium, direct-fit solution. 8an line I usedhttps://www. Customize your Subaru, Honda, Nissan, or Toyota car with PERRIN today! Good morning all, 24 WRX TR… Recently installed IAG V4 AOS, Cobb Charge Pipe, and Cobb TMIC. Any input on which may be better, or if Perrin’s is better for the $? The Perrin AOS is fair amount cheaper than IAG. Crawford Air Oil Separator compatible with Perrin Master Brake Cylinder Brace Anyone have Crawford Air Oil Separator with Perrin Master Brake Cylinder Brace both installed? PERRIN Performance is a leader in performance parts & car customization products. The time now is 04:29 AM. 399$ vs 499$. The PERRIN AOS is designed to connect to each of these separately without requiring any T connections. Transform your ride with our expert recommendations! 56 votes, 23 comments. As best I've been able to gather, it restricts some kind of vacuum created by the exhaust system that causes oil to be pulled through the turbo seals? Is that right? Just installed the Perrin AOS this weekend, hindsight should of went with the IAG just for ease of install lol. You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other . My car only has 7k miles on it. This reduces carbon build-up, improves intercooler efficiency, and lowers the risk of performance-degrading detonation. 0L Turbo Powertrain I recently bought an AOS from Perrin, which includes their turbo sump restrictor. The heated coolant perfusion design of the IAG AOS is the most uniform throughout the can and superior to Crawford and Perrin. /r/WRX is a place for Subaru fanatics to show off their rides, discuss modifications… Consider it an entry level Air-Oil Separator. Years of fighting with this thing, but now KillerB has come to the rescue with their AOS Perrin AOS, recommended Car Part Reviews Welcome to the NASIOC. Install went well, sorta. WRX / STI 2008-2014 WITH TMIC. Between those two brands it’ll mostly come down to price & style. Searching posts… AOS are less maintenance but more expensive. The IAG AOS is heated with coolant so it will retain the clear oil consistency year round and that is the stuff that goes back into the crankcase. Perrin aos Built Motor Discussion All times are GMT -4. PERRIN AOS INSTALL PART 2 OF 2 | 2015-2019 SUBARU WRX | AIR OIL SEPARATOR Cars with JR 64. Discover the Perrin Air Oil Separator Kit for 2022-2024 WRX. PERRIN AOS INSTALL PART 1 OF 2 | 2015-2019 SUBARU WRX | AIR OIL SEPARATOR Cars with JR 64. Not the most cost effective solution but it's ideal for any situation while retaining OEM manifold vacuum (PCV valve) and keeping oil completely out of the entire intake tract. Perrin AOS, recommended Car Part Reviews Welcome to NASIOC - The world's largest online community for Subaru enthusiasts! I bought this Perrin Air oil separator second had and made it look a lot better and now it time to install it all in the car. While the Moroso separator is a step above the GrimmSpeed unit, it is not water heated, making it a bad choice for people living in cold-weather locations due to the risk of condensation. Discover the Perrin Air Oil Separator Kit for 2015-2021 WRX. Simply put using an Air Oil Separator (AOS) keeps carbon build up out of your engine which means more power and cleaner intake, ports valves and combustion chamber. I have a 2015 WRX STI with 54k miles and my daily commute is really short—usually less than 10 minutes each way. We take a look at the most popular AOS options to find the best one For now, this is only a confirmation of the 2013+ STI and below Perrin TMIC AOS being able to fit in the 2015 WRX STI VA chassis (not sure about the WRX, please research). A Perrin AOS and Moroso AOS combined. The PERRIN AOS utilizes a multi-baffle design combined with swirl pot technology to increase the surface area capable of collecting oil, maximizing the unit's efficiency despite its compact Shop Subaru Air Oil Separators from IAG Performance, Perrin, and Radium Engineering for BRZ, WRX, and STI to control blow-by and protect your engine. amaz The Perrin Air Oil Separator Kit (AOS) Black for the 2022–2024 WRX is designed to help reduce oil vapor from entering the intake tract, keeping the intercooler and intake system cleaner over time. qvzc, u55lf2, 8olge, rwcc, 7q1yx, 569fw, awzhf, zvaul, f1wxaj, duxec,