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Air Oil Separator: Subaru's Original
What is an Air Oil Separator?
Baja Edition Air Oil Separator (AOS) Kits
Single Chamber (V2) AOS Kits
Dual Chamber (V3) AOS Kits
Replacement Parts
OFF ROAD OVERLAND BY CRAWFORD PERFORMANCE
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Shop Parts
Air Oil Separator: Subaru's Original
What is an Air Oil Separator?
Baja Edition Air Oil Separator (AOS) Kits
Single Chamber (V2) AOS Kits
Dual Chamber (V3) AOS Kits
Replacement Parts
OFF ROAD OVERLAND BY CRAWFORD PERFORMANCE
2024+ Crosstrek Off-Road Overland Parts
2018+ Crosstrek Overland Parts
2019+ Forester Overland Parts
2017+ Impreza Overland Parts
Intake | Billet Power Blocks
Billet Power Block
Gaskets and O-Rings
Subaru OEM Engines Crawford Short Blocks
Crawford Built Subaru Short Blocks
OEM Subaru Short Blocks
Subaru Short Block Installation Kits
Subaru Engine Internals
NGK Spark Plugs
K&N Oil Filters
Crawford Performance Exhaust
WRX, STI
BRZ, FRS, GT86
MOTUL Fluids
Motor Oil
Gear Oil
Brake Fluid
Wheels / BFGoodrich Tires
Merchandise / Clothing
All Crawford Performance Subaru Products
Contact Us & Support
Contact Us
FAQ
Air Oil Separator
Subaru Engine
Installation / Repair / Maintenance
Installation Instructions
Returns / Exchanges / Standard Warranty
About Us and Ken Block
Background
2023 Product Catalog
Blog
News
Tech
Builds
Subaru Motorsports USA - Crosstrek Desert Racer
Crawford Built Off-Road Subaru Crosstrek
Crawford Built Off-Road Subaru Forester
Dealers
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K&N Oil Filter - Subaru FA - HP-1004
$ 15.99
$ 18.49
