Verus Engineering
Verus Engineering Air Oil Separator (AOS) - 2015-2021 Subaru WRX STI (VA) EJ Platform
Verus Engineering Air Oil Separator (AOS) - 2015-2021 Subaru WRX STI (VA) EJ Platform
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The Verus Engineering Air Oil Separator (AOS) ensures the intake system remains oil-free. Oil in the intake system reduces octane, which can lead to detonation, reduction in power, and carbon build-up. The unit installs like an OE component with no change to the tune or setup needed. The Verus AOS also filters both the crankcase vent location as well as the intake filter location, through a single unit.
Four, 5 micron, coalescent filters, one on each inlet and outlet, baffling, and stainless mesh offer unprecedented air filtration for the crankcase air.
An optional coolant hook-up kit runs hot coolant through the AOS to reduce condensation build-up in colder months.
Anodized parts can potentially fade over time due to engine bay heat.
Add-on Options:
Install Manual:
Click here to download Installation Manual
FEATURES
Prevents Oil from Getting in the Intake System
4 Coalescent Filters that Filter Particulates Larger than 5 Micron
Stainless Mesh to Further Condense Oil Vaper
Baffles for Further Separation of Oil Particles
SPECIFICATIONS
CNC Machined from 6061-T6
Mil-Spec O-Ring Bosses
Anodized for Corrosion Resistance
CNC Laser Engraved
Four 5 Micron Coalescent Filters
Made in the U.S.A.
SCIENCE
Our AOS has one job and that is to remove the oil from the engine crankcase system so the oil does not get into the intake system. Oil in the system reduces octane, which can lead to detonation, reduction in power, and carbon build-up. Using coalescent filters, we are able to filter out oil vapor down to 5 microns in size.
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