Verus Engineering Air Oil Separator Kit - 2015-2021 Subaru STI

The AOS Kit will prevent harmful oil and vapors from entering the intake system of the VA Subaru STI.

RallySport Direct proudly carries a great selection of quality aftermarket products that have been expertly engineered and crafted by Verus Engineering.

The Verus Engineering Air Oil Separator (AOS) ensures that the intake system remains free from oil. The presence of oil in the intake system can lower the octane level, potentially causing detonation, decreased power, and carbon accumulation. Installing the AOS is as simple as adding an original equipment (OE) component, without requiring any adjustments or modifications to the tune or setup. The Verus AOS has the added benefit of filtering both the crankcase vent and intake filter locations using a single unit.

To provide exceptional air filtration for the crankcase air, the AOS incorporates four 5-micron coalescent filters—one on each inlet and outlet—along with baffling and stainless mesh.

For those in colder climates, there is an optional coolant hook-up kit available. This kit allows hot coolant to flow through the AOS, effectively reducing the build-up of condensation during colder months.

SPECS:

• 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.

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

INCLUDES:

• Assembled AOS
• 4 Coalescent Filters
• Internal Baffling
• Stainless Mesh
• Sheet Steel Bracket for VA Chassis, LHD Only
• 3/4" Rubber Hose
• 1/2" Rubber Hose
• 3/8" Rubber Hose
• Hardware Bag, Including All Necessary Parts for a Seamless Install