SKU: 65957506835

Radium Engineering Air Oil Separator AOS-R Kit – 2013-2020 Subaru BRZ, Scion FR-S, Toyota 86

Sale price$189.45 Regular price$210.50
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

Radium Engineering Air Oil Separator AOS-R Kit – 2013-2020 Subaru BRZ, Scion FR-S, Toyota 86High powered modified 4U GSE and FA20A engines tend to generate excessive blow by oil and gasses. In these cases, an ordinary small catch can may quickly fill with oil and not be adequate. Like the Radium Engineering Dual Catch Can Kit, the AOS (Air Oil Separator) kit is responsible for keeping blow by oil and other pollutants out of the intake pipe, manifold, turbocharger, and intercooler during all engine loads. The main difference is that an AOS


High-powered modified 4U-GSE and FA20A engines tend to generate excessive blow-by oil and gasses. In these cases, an ordinary small catch can may quickly fill with oil and not be adequate. Like the Radium Engineering Dual Catch Can Kit, the AOS (Air Oil Separator) kit is responsible for keeping blow-by oil and other pollutants out of the intake pipe, manifold, turbocharger, and intercooler during all engine loads. The main difference is that an AOS system returns what is collected back into the oil pan (as shown below) so there is no servicing required. The built-in heater keeps water from condensing in the AOS. And because water is more dense than oil, there is an integrated water trap found around the bottom perimeter of the can. This prevents water from descending into the oil pan if ever-present. Furthermore, because the water is trapped against the heater, it will eventually boil and evaporate out of the system.


The AOS is constructed of three CNC machined sections that screw together and are sealed with O-rings.

Measurements
AOS Height: 6.94″ (top of the dipstick to bottom of AOS)
AOS Diameter: 3.45″ Round
AOS Capacity: 20.3 oz (600mL)

Benefits
-Effectively raises the octane and increases engine performance with cleaner inlet air
-Prevents oil buildup in the intake or intercooler system walls, throttle body, intake manifold, etc.
-Lowers hydrocarbon emissions

What is included?
-Machined aluminum Radium Air Oil Separator
-Specially designed mounting bracket
-SAE J30R7 rated PCV/Emissions hose
-Coolant heater hoses and fittings
-All necessary aluminum fittings and hose-ends
-Stainless steel mounting hardware


NOTES:

*If operated in freezing environments, Radium Engineering recommends installing insulation sleeving (not included) over any hose exposed to cold airflow. This will help prevent the natural phenomenon of water condensation freezing and potentially clogging the hose.
*For RHD vehicles, our Universal AOS must be used for custom mounting and plumbing.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 65957506835

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Arlene
Battle Creek, US
★★★★★ 4
Good, convenient and portable printer
Color: Green, Color: Green
This printer works great for my needs. The battery life has been good and the printer app functionality has worked without any issues. For me it is very easy to use and understand so overall I think it is a good, portable and convenient printer. However my one ad only issue is the labels get stuck and causes an error about 80% of the time meaning the label won’t print out unless I open it and realign it perfectly. That is a pain! I am contemplating returning it for a new one to see if it is just a design flaw or a printer issue so I am rating it 4 stars.
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Reviewed in the United States on April 30, 2026
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Travis
Carnegie, US
★★★★★ 5
I’m officially old now, but at least my stuff is organized. (A truly im-press-ive gadget).
Color: Green
I hit 30 recently, and apparently, my birthday present from the universe was a sudden, overwhelming urge to organize my garage and pantry. I bought this Nelko P21 to help with the transition into full adulthood, and honestly, it’s been a blast to use. Setting it up was surprisingly painless. You just download the app on your phone, turn on Bluetooth, and it connects almost instantly. The app itself is straightforward—you don't need a tech degree to figure out how to change the fonts, add borders, or even insert little icons. Since it's a thermal printer, you never have to buy ink or deal with messy cartridges, which is a massive plus for me because I would absolutely find a way to spill it. The machine itself is tiny, basically the size of a couple of smartphone decks stacked together, so it doesn't take up any room in a drawer. The labels print fast, the text is sharp, and the adhesive on the tape that comes with it holds up well on plastic storage bins and glass jars. My only minor complaint is that the app forces you to look at a ton of font options, and a lot of them are locked behind a subscription or paywall, but the free, basic fonts are more than enough to label a box of spare cables or spice jars. If you've reached the stage of life where clean storage containers bring you joy, this thing is worth every penny.
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Reviewed in the United States on May 25, 2026
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Shahbaz
Pawtucket, US
★★★★★ 5
Didn’t Expect to Use It This Much, Now I Reach for It Daily
Color: Black, Color: Black
I originally bought this label maker for a few simple tasks, but it quickly turned into something I use almost every day. As someone who manages multiple locations and stays organized across different responsibilities, having a quick and reliable way to label and categorize items makes a bigger impact than you’d think and this does exactly that. What stands out: Quick setup and easy Bluetooth connection. Compact design that’s easy to keep within reach. Clear, professional-looking labels. App gives enough flexibility without being complicated, allows you to create QR codes as well as functioning barcodes. One thing to note: There’s a short learning curve with the app, but nothing that slows you down after the first couple uses. Bottom line: If you value organization and efficiency, this is one of those small tools that quietly improves how you operate day to day.
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Reviewed in the United States on March 24, 2026
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Jordan
Lexington, US
★★★★★ 5
Perfect Label Maker
Color: White
I wasn’t expecting to love a label maker this much, but this thing has been incredibly useful. It’s easy to set up, simple to use, and prints clear, professional-looking labels every time. The print quality is sharp and the labels stick really well without peeling off.
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Reviewed in the United States on May 27, 2026
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Pamela Lizbeth
Battle Creek, US
★★★★★ 5
Very much needed!
Color: Pink
This label maker is super cute and very easy to use. The Bluetooth connection worked quickly with my phone and the app has plenty of templates and font options for organizing around the house and office. The labels print clearly, and the compact size makes it convenient to store anywhere. The pink color is also a nice touch and looks great on my desk!
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Reviewed in the United States on May 26, 2026

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