GrimmSpeed Air Oil Separator - Subaru WRX 2008-2014 / Legacy GT 2005-2009
GrimmSpeed Air Oil Separator - Subaru WRX 2008-2014 / Legacy GT 2005-2009
GrimmSpeed Air Oil Separator - Subaru WRX 2008-2014 / Legacy GT 2005-2009
GrimmSpeed Air Oil Separator - Subaru WRX 2008-2014 / Legacy GT 2005-2009
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GrimmSpeed Air Oil Separator - Subaru WRX 2008-2014 / Legacy GT 2005-2009

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$299.00

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GrimmSpeed Air Oil Separator - Subaru WRX 2008-2014 / Legacy GT 2005-2009

An Air/Oil Separator has one job, remove the oil from the engine ventilation system so the oil does not get sent through the intake system.

The GrimmSpeed Subaru Air/Oil Separator has a unique patent pending design that allows you to maintain your PCV Valve while separating the oil out of the crankcase and head ventilation air! Their AOS will allow your engine to run more efficiently due to the separation of oil from the intake system. When there is oil in your system, the result is 1) reduced fuel octane 2) higher chance of engine knock(detonation) 3) worse emissions 4) higher oil consumption. Their Subaru Air/Oil Separator will help all of these problems.

In typical GrimmSpeed fashion, they have made a very compact unit that packs a powerful punch(and looks good while doing it)! No more having to check/empty your catch can and refilling your oil. The GrimmSpeed™ AOS coalesces oil without using a mesh media. Mesh medias can cause contaminates to collect and build up resulting in possible sludge. The AOS is self maintained so you can just sit back, stop worrying, and enjoy driving your car!


*Pictures for marketing purposes only. Actual product may vary in appearance / style. 

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Returns Policy

Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new. Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.

Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.

Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.

Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.

Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.

Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.

You can simply contact us via email / telephone for a live inventory check

P65 WARNING: Cancer and Reproductive Harm

Find more information at www.P65Warnings.ca.gov.

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