Air Oil Separator (AOS) for 2015-2021 Subaru WRX by Verus Engineering
The Verus Engineering Air Oil Separator (AOS) prevents oil from entering the intake system. Oil in the intake system can lower octane levels, leading to detonation, power loss, and carbon buildup. This unit installs as easily as an OEM part and requires no tuning or setup changes. The Verus AOS filters both the crankcase vent and the intake filter side in a single unit.
Featuring four 5-micron coalescence filters (one each for the intake and exhaust), baffles, and stainless mesh, it offers superior crankcase air filtration performance like never before.
Features
- High-quality materials
- Multiple color options
Benefits
- Keeps the intake system free of oil
Note: Anodized parts may fade over time due to engine bay heat.
Vehicle Fitment
- 2015-2021 Subaru WRX
What's in the Box?
- 1 - Assembled AOS
- 1 - Steel mounting bracket
- 1 - 3/4" rubber hose
- 1 - 1/2" rubber hose
- 1 - 3/8" rubber hose
- Installation hardware
Reference Materials
Warranty
- Verus Engineering Limited Manufacturer Warranty
Before Ordering
〇 Regarding Import Duties and Taxes
At Shaftoya Shopping Site, we cover the import taxes incurred upon entry into Japan, so there will be no additional charges beyond the total amount paid at checkout.
〇Checking Compatibility
As our product database is primarily based on North American (USDM) vehicles, please confirm compatibility with Japanese (JDM) vehicles before ordering. (If you are unsure if a listed product fits your vehicle, please feel free to contact us. Our support team will be happy to look into it for you.)
If you place an order without confirming compatibility, we cannot accept returns due to fitment issues.
Please note that even if items are sorted by selecting the year, make, and model on our top page, it does not guarantee that the product will fit Japanese-spec models without modification.
All products have been translated into Japanese using software. Please be aware that there may be confusing expressions, and feel free to contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of checkout. Shipping estimates are automatically calculated when you enter your shipping address on the checkout page. For large items such as body parts, the automatic calculation may differ significantly from the actual shipping cost. In such cases, we will contact you via email separately.
All products are generally shipped internationally from our U.S. warehouse. Unlike domestic shipping in Japan, international shipping takes approximately 7 to 14 days, so please allow sufficient time for delivery. If you are in a hurry, please contact us in advance to check the lead time. All items are shipped via air freight; we do not use sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Please note that all products we handle are designed and manufactured outside of Japan. They are not compliant with Japanese "Shaken" (vehicle inspection) regulations, and we cannot provide strength calculation documents or similar paperwork for the Japanese inspection system. Therefore, all parts are sold for "track, private property, or off-road use only," and installation and use are at your own risk.
○ Regarding Warranty
Please check the contents of your order as soon as it arrives. Since all products are shipped internationally from outside of Japan, there is a possibility of damage to the shipping box or the product. We only accept returns, refunds, or exchanges for shipping damage, defective products, or incorrect items if you contact us within 7 days of receipt. Please understand that for products sold through us, all warranty-related matters must be handled "exclusively through us." We do not provide support through other companies or distributors located within Japan.