• Cobb [15 - 21 WRX] Air Oil Separator | 843615 - JDMuscleAir Oil Separatorscobb843615
  • Cobb [15 - 21 WRX] Air Oil Separator | 843615 - JDMuscleAir Oil Separatorscobb843615
  • Cobb [15 - 21 WRX] Air Oil Separator | 843615 - JDMuscleAir Oil Separatorscobb843615
  • Cobb [15 - 21 WRX] Air Oil Separator | 843615 - JDMuscleAir Oil Separatorscobb843615

COBB Tuning

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Air/Oil Separator

Fits: 15-21 WRX

$61000
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Pay over time available · Est. $19.06/payment
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Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

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COBB Tuning Air/Oil Separator
Fits: 15-21 WRX
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Fitment

Please Note: Official COBB fitment: 2015–2021 Subaru WRX sedan, including CVT and 6-speed manual USDM applications. The Air/Oil Separator was developed with IAG Performance and connects to the FA engine crankcase ventilation ports.
  • 2015–2021 Subaru | WRX

Description

The COBB Air/Oil Separator for the 2015–2021 Subaru WRX helps keep crankcase oil vapors out of the intake system, reducing deposits and preserving effective fuel octane. Developed with IAG Performance, its heated compact design separates oil from air, promotes drainage, and evaporates collected water before it can mix with the oil.

• Fits 2015–2021 Subaru WRX sedan
• Compatible with CVT and 6-speed manual transmissions
• USDM applications
• Compact cast-aluminum tank with wrinkle-black powder coat
• Approximately 1-liter holding capacity
• Integrated ORB ports and coolant bleeder valve
• Heated design helps evaporate water from the canister
• Snail-shaped base promotes oil drainage
• Bespoke COBB anodized caps and laser-etched logo
• Developed in partnership with IAG Performance
• 50-state CARB legal under the manufacturer application guide
• Reference: https://www.cobbtuning.com/products/turbo/subaru-air-oil-separator-wrx-2015-2021

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