Radium Engineering Air Oil Separator AOS-R Kit – 2013-2020 Subaru BRZ, Scion FR-S, Toyota 86
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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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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Jennifer Mak
Boise, US
★★★★★ 5
Velcro for folding?
The toy came folded in a bag very nice. However once I took it out I realized the folds were attached by Velcro. Once unrolled I have not needed to use the Velcro since. Just one piece of the toy that was unnecessary. Otherwise t the dot is very colorful and my dog has not been able to tear it up yet.
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Reviewed in the United States on December 27, 2024
C
Verified Purchase
Carley
Birmingham, US
★★★★★ 4
Great toy for moderately destructive dogs
Color: Dragon
My dog LOVES this toy. It's not hard to see why: it has just about everything a dog could want in a soft toy. There are ropes that move around, a squeaker, crinkly wings, and different textures of fabric. It's not extremely durable--I've had to sew up one busted seam within a month or so--and you will likely have to re-knot the ropes and pull them back through the holes, but if your dog is only moderately destructive, they will enjoy this. I'd buy another.
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Reviewed in the United States on February 11, 2025
S
Verified Purchase
S. Hart
Alexandria, US
★★★★★ 3
Dog Obsessed -- Toy a Mess
Color: Squirrel
The dog was OBSESSED. Truly loved this toy, but he ripped the little pockets really easily. While he still wanted to play with it, it was a little disappointing.
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Reviewed in the United States on April 28, 2026
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Verified Purchase
BB
Charlottesville, US
★★★★★ 5
Cute toy
Color: Squirrel
My dog loved it! Looks just like the pics. Durable for most dogs I’m sure. My little dog can destroy anything though lol! Didn’t get to use the treat part cause he destroyed it but looks like a neat concept
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Reviewed in the United States on January 17, 2025
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Verified Purchase
Rene G. Riccardi
Louisville, US
★★★★★ 5
Creative and well made!
Color: Squirrel
This is a great dog toy, durable, creative, and it kept my dogs busy and very, very interested. It's challenging enough, but not frustrating. Great for tug of war, too!
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Reviewed in the United States on February 26, 2025

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