Cobb Tuning 15-19 WRX Air Oil Separator

FEATURES:

Subaru Air/Oil Separator WRX 2015-2019
Billet Aluminum Tank Design
Bespoke COBB Anodizing on Caps
Wrinkle Black Powder Coated Canister
Laser Etched COBB Logo
Developed in Partnership with IAG Performance

WHY DO YOU NEED THIS?


The COBB Subaru Air/Oil Separator helps to prevent crankcase oil vapors from recirculating back through your engine's intake system.

Oil vapors passing through your engine's intake system lower the effective octane rating of fuel and can contribute to both oil and carbon buildup over time.

Cobb Tuning Part Number: 843600

Weight
7.00 lbs
SKU
843600
Weight
7.00 lbs
$470.00

The COBB Tuning Air/Oil Separator is placed within your Subarus crankcase ventilation system (PCV system) and helps to prevent oil vapors from being introduced into the intake system. The COBB Air Oil Separator has been developed in partnership with IAG Performance and offers exclusive features.

Heat Shielding on Crankcase Breather and Oil Return Lines
Coolant Bleeder Valve
Bespoke COBB Color Combination
Laser Etched COBB Logo


The Subaru FA engine has 2 ports that vent crank pressure: one on each cylinder head and another on the top of the block. Each engine vent port receives its own connection to the AOS. By giving each engine port its own entrance to the AOS we have allowed for more effective and faster excavation of crankcase pressure. Additionally, this reduces overall system pressure. With a 4" OD and 5.75" height, the AOS has an approximate 1 liter of holding capacity. The larger the AOS, the more power you can safely make without having to worry about the AOS overfilling.

The bottom of the AOS is shaped like a snail, redirecting positive crank pressure into the same swirl pattern produced by the 3 side ports. Allowing maximum oil drainage while separating oil from the air in all the venting ports.

The back plate of the AOS features a unique coolant routing system that heats the entire AOS to the same temperature of the engine. This maximizes the evaporation of any water collecting inside of the can. The hotter the AOS, the less water will collect inside and mix with the oil.



warning_symbolWARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.

Weight
7.00 lbs
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