Crawford Performance Air Oil Separator V3
STI  2008-2021 w/ TMIC

Crawford Performance Air Oil Separator: The Subaru Original

• Not a Catch Can - Closed Loop and Maintenance Free

• Consume Less Oil

• Extend the Life of your Engine

• Reduce Detonation and Risk of Engine / Ringland Failure

• Reduce Fuel Dilution and Subsequent Power Loss

New Dual Chamber (V3) Features:

• Our Latest technology - Not seen anywhere else and Patent Pending
• Double Labyrinth Chambers increase efficiency
• Does not delete Smog Component - Utilizes OEM PCV System
• Worldwide Compatibility: Fits on RHD Vehicles
• No Coolant Line = Easier Install

Oil pooling in your intake? Stop the oil from ever getting there with the Crawford Air Oil Separator.

The Crawford Performance Air Oil Separator (AOS) is the original solution to Subaru's notorious oiling system issues. Although the technology was pre-existing with other vehicle brands such as Porsche, Crawford Performance is the inventor of the first system specifically for Subaru. No other AOS on the market employs the same technology.

Want to know more about how an Air/Oil Separator works and why you need one? 

Click here to check out our FAQ blog on the technology inside. 
There you can also find a full fitment list for all current versions and kits.

Note: more V3 fitment options are currently in R&D. Is your car or application unavailable? Click here to check our V2 Kits, which have the widest range of fitments. 

*Note: Due to the fact that the AOS bracket connects to the TGV housing, this kit is not compatible with aftermarket TGV housings. 

*Note: This system was designed on USD models. Not compatible with all PCV systems across the world and may require some additional components to properly install.

Install Instructions

2008 - 2016 STI
     PDF
     Video

2017+ STI
     PDF
     Video

Dual Chamber (V3) for Subaru WRX: 2015 + w/ TMIC (Only fits with Top Mount Intercooler) 

Crawford Performance Air Oil Separator: 
The Subaru Original

• Not a Catch Can - Closed Loop and Maintenance Free

• Consume Less Oil

• Extend the Life of your Engine

• Reduce Detonation and Risk of Engine / Ringland Failure

• Reduce Fuel Dilution and Subsequent Power Loss

New Dual Chamber (V3) Features:

• Our Latest technology - Not seen anywhere else and Patent Pending
• Double Labyrinth Chambers increase efficiency
• Does not delete Smog Component - Utilizes OEM PCV System
• Worldwide Compatibility: Fits on RHD Vehicles
• No Coolant Line = Easier Install

Oil pooling in your intake? Stop the oil from ever getting there with the Crawford Air Oil Separator.

The Crawford Performance Air Oil Separator (AOS) is the original solution to Subaru's notorious oiling system issues. Although the technology was pre-existing with other vehicle brands such as Porsche, Crawford Performance is the inventor of the first system specifically for Subaru. No other AOS on the market employs the same technology.

Want to know more about how an Air/Oil Separator works and why you need one? 

Click here to check out our FAQ blog on the technology inside. 
There you can also find a full fitment list for all current versions and kits.

Note: more V3 fitment options are currently in R&D. Is your car or application unavailable? Click here to check our V2 Kits, which have the widest range of fitments. 

Install Instructions

Dual Chamber (V3) for Subaru WRX: 2008 - 2014 w/ TMIC (Only fits with Top Mount Intercooler) 

Crawford Performance Air Oil Separator: The Subaru Original

• Not a Catch Can - Closed Loop and Maintenance Free

• Consume Less Oil

• Extend the Life of your Engine

• Reduce Detonation and Risk of Engine / Ringland Failure

• Reduce Fuel Dilution and Subsequent Power Loss

New Dual Chamber (V3) Features:

• Our Latest technology - Not seen anywhere else and Patent Pending
• Double Labyrinth Chambers increase efficiency
• Does not delete Smog Component - Utilizes OEM PCV System
• Worldwide Compatibility: Fits on RHD Vehicles
• No Coolant Line = Easier Install

Oil pooling in your intake? Stop the oil from ever getting there with the Crawford Air Oil Separator.

The Crawford Performance Air Oil Separator (AOS) is the original solution to Subaru's notorious oiling system issues. Although the technology was pre-existing with other vehicle brands such as Porsche, Crawford Performance is the inventor of the first system specifically for Subaru. No other AOS on the market employs the same technology.

Want to know more about how an Air/Oil Separator works and why you need one? 

Click here to check out our FAQ blog on the technology inside. 
There you can also find a full fitment list for all current versions and kits.

Note: more V3 fitment options are currently in R&D. Is your car or application unavailable? Click here to check our V2 Kits, which have the widest range of fitments. 

*Note: Due to the fact that the AOS bracket connects to the TGV housing, this kit is not compatible with aftermarket TGV housings.

*Note: This system was designed on USD models. Not compatible with all PCV systems across the world and may require some additional components to properly install.

Install Instructions

Install Video
PDF

Crawford Air Oil Separator V3 -
BRZ/FRS/86 2013-2020

Crawford Performance Air Oil Separator: The Subaru Original
(2.0L only, does not fit 2.4L)

• Not a Catch Can - Closed Loop and Maintenance Free

• Consume Less Oil

• Extend the Life of your Engine

• Reduce Detonation and Risk of Engine / Ringland Failure

• Reduce Fuel Dilution and Subsequent Power Loss

New Dual Chamber (V3) Features:

• Our Latest technology - Not seen anywhere else and Patent Pending
• Double Labyrinth Chambers increase efficiency
• Does not delete Smog Component - Utilizes OEM PCV System
• Worldwide Compatibility: Fits on RHD Vehicles
• No Coolant Line = Easier Install

Oil pooling in your intake? Stop the oil from ever getting there with the Crawford Air Oil Separator.

The Crawford Performance Air Oil Separator (AOS) is the original solution to Subaru's notorious oiling system issues. Although the technology was pre-existing with other vehicle brands such as Porsche, Crawford Performance is the inventor of the first system specifically for Subaru. No other AOS on the market employs the same technology.

Want to know more about how an Air/Oil Separator works and why you need one? 

Click here to check out our FAQ blog on the technology inside. 
There you can also find a full fitment list for all current versions and kits.

Note: more V3 fitment options are currently in R&D. Is your car or application unavailable? Click here to check our V2 Kits, which have the widest range of fitments. 

Written PDF Install Instructions
Video Install Instructions

Crawford Air Oil Separator (V3) Forester XT
2014-2018 w/ TMIC

Crawford Performance Air Oil Separator: The Subaru Original

• Not a Catch Can - Closed Loop and Maintenance Free

• Consume Less Oil

• Extend the Life of your Engine

• Reduce Detonation and Risk of Engine / Ringland Failure

• Reduce Fuel Dilution and Subsequent Power Loss

New Dual Chamber (V3) Features:

• Our Latest technology - Not seen anywhere else and Patent Pending
• Double Labyrinth Chambers increase efficiency
• Does not delete Smog Component - Utilizes OEM PCV System
• Worldwide Compatibility: Fits on RHD Vehicles
• No Coolant Line = Easier Install

Oil pooling in your intake? Stop the oil from ever getting there with the Crawford Air Oil Separator.

The Crawford Performance Air Oil Separator (AOS) is the original solution to Subaru's notorious oiling system issues. Although the technology was pre-existing with other vehicle brands such as Porsche, Crawford Performance is the inventor of the first system specifically for Subaru. No other AOS on the market employs the same technology.

Want to know more about how an Air/Oil Separator works and why you need one? 

Click here to check out our FAQ blog on the technology inside. 
There you can also find a full fitment list for all current versions and kits.

Note: more V3 fitment options are currently in R&D. Is your car or application unavailable? Click here to check our V2 Kits, which have the widest range of fitments. 

Install Instructions

Crawford Performance Air Oil Separator: The Subaru Original Dual Chamber (V3) for Subaru Forester XT: 2007 - 2013 w/ TMIC (Only fits with Top Mount Intercooler) 

• Not a Catch Can - Closed Loop and Maintenance Free

• Consume Less Oil

• Extend the Life of your Engine

• Reduce Detonation and Risk of Engine / Ringland Failure

• Reduce Fuel Dilution and Subsequent Power Loss

New Dual Chamber (V3) Features:

• Our Latest technology - Not seen anywhere else and Patent Pending
• Double Labyrinth Chambers increase efficiency
• Does not delete Smog Component - Utilizes OEM PCV System
• Worldwide Compatibility: Fits on RHD Vehicles
• No Coolant Line = Easier Install

Oil pooling in your intake? Stop the oil from ever getting there with the Crawford Air Oil Separator.

The Crawford Performance Air Oil Separator (AOS) is the original solution to Subaru's notorious oiling system issues. Although the technology was pre-existing with other vehicle brands such as Porsche, Crawford Performance is the inventor of the first system specifically for Subaru. No other AOS on the market employs the same technology.

Want to know more about how an Air/Oil Separator works and why you need one? 

Click here to check out our FAQ blog on the technology inside. 
There you can also find a full fitment list for all current versions and kits.

Note: more V3 fitment options are currently in R&D. Is your car or application unavailable? Click here to check our V2 Kits, which have the widest range of fitments. 

*Note: Due to the fact that the AOS bracket connects to the TGV housing, this kit is not compatible with aftermarket TGV housings.

*Note: This system was designed on USD models. Not compatible with all PCV systems across the world and may require some additional components to properly install.

Install Instructions

Install Video
PDF

Why Choose Crawford Air Oil Separator V3 2019+ Ascent?

Crawford Performance Air Oil Separator: The Subaru Original
Dual Chamber (V3) for 2019+ Subaru Ascent

• Not a Catch Can - Closed Loop and Maintenance Free

• Returns Oil back to Crankcase

• Consume Less Oil

• Extend the Life of your Engine

• Reduce Detonation and Risk of Engine / Ringland Failure

• Reduce Fuel Dilution and Subsequent Power Loss

New Dual Chamber (V3) Features:

• Our Latest technology - Not seen anywhere else and Patent Pending
• Double Labyrinth Chambers increase efficiency
• Does not delete Smog Component - Utilizes OEM PCV System
• Worldwide Compatibility: Fits on RHD Vehicles
• No Coolant Line = Easier Install

Oil pooling in your intake? Stop the oil from ever getting there with the Crawford Air Oil Separator.

The Crawford Performance Air Oil Separator (AOS) is the original solution to Subaru's notorious oiling system issues. Although the technology was pre-existing with other vehicle brands such as Porsche, Crawford Performance is the inventor of the first system specifically for Subaru. No other AOS on the market employs the same technology.

Want to know more about how an Air/Oil Separator works and why you need one? 

Click here to check out our FAQ blog on the technology inside. 
There you can also find a full fitment list for all current versions and kits.

Note: more V3 fitment options are currently in R&D. Is your car or application unavailable? Click here to check our V2 Kits, which have the widest range of fitments. 

Written PDF Install Instructions

Crawford Air Oil Separator V3 2019+ Ascent is a cutting-edge product designed to improve engine performance and reduce carbon buildup in Subaru Ascent models released in 2019 and later. This air oil separator is engineered to prevent oil from entering the air intake system, which can cause reduced performance and premature engine wear. By separating the oil from the air before it goes into the intake, the Crawford Air Oil Separator V3 keeps the engine cleaner and allows it to breathe more efficiently.

But that's not all. The Crawford Air Oil Separator V3 2019+ Ascent also offers a host of other benefits that make it a must-have upgrade for your Subaru Ascent. Here are some of the key advantages of this product:

Enhanced Performance: By removing oil from the air intake system, the Crawford Air Oil Separator V3 helps to improve engine performance. This is because oil in the intake system can cause issues such as reduced power and lower fuel efficiency, which can negatively impact your driving experience. With the Crawford Air Oil Separator V3, you can enjoy improved performance and better fuel economy.

Reduced Carbon Buildup: Carbon buildup can be a major problem for modern engines, and can even cause permanent damage over time. The Crawford Air Oil Separator V3 helps to reduce carbon buildup by preventing oil from entering the intake system. This means that your engine will stay cleaner and last longer.

Easy to Install: The Crawford Air Oil Separator V3 is designed to be easy to install, with no special tools or modifications required. You can install it yourself with basic hand tools in just a few hours.

High-Quality Construction: The Crawford Air Oil Separator V3 is built with high-quality materials, including 6061-T6 billet aluminum and stainless steel. This ensures that it is durable and long-lasting, even under the most demanding driving conditions.

Order Now: Upgrade your 2019+ Subaru Ascent to the Crawford Air Oil Separator V3 and experience enhanced performance and reduced carbon buildup. Order now and get ready to take your driving experience to the next level!