Cobb 02-07 Subaru WRX / 04-07 STI Air Oil Separator

$495.00

Cobb 02-07 Subaru WRX / 04-07 STI 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. This not only hurts performance it also adds stress via “hot spots” to your engine. Luckily installing the Cobb AOS offers an easy bolt on solution that keeps your engine clean and safe!

8 in stock (can be backordered)

SKU: cobb811615 Categories: ,

Description

Cobb 02-07 Subaru WRX / 04-07 STI Air Oil Separator

The COBB Air/Oil Separator is placed within your Subarus crankcase ventilation 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.

  • 1 Liter Holding Capacity
  • Integrated ORB Ports
  • Compact Cast Aluminum Body w/ Black Powdercoat Finish
  • Heat Shielding on Crankcase Breather and Oil Return Lines
  • Coolant Bleeder Valve
  • Bespoke COBB Color Combination
  • Laser Etched COBB Logo

The Subaru EJ engine has 3 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.

EMISSIONS 50 State Legal.
This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer’s application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number: D-660-25, D-660-45

Additional information

Weight 9.7 kg
Dimensions 12.4 × 12.1 × 6.6 cm
air_freight_prohibited

false

not_carb_approved

true

ltl_freight_required

false

prop_65

Unknown

epa

Compliant

upc

700424680306

Brand

COBB

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