Cobb 08-14 Subaru WRX / 08-20 STI Air Oil Separator-COBB-COBB822615
Cobb 08-14 Subaru WRX / 08-20 STI Air Oil Separator-COBB-COBB822615
Cobb 08-14 Subaru WRX / 08-20 STI Air Oil Separator-COBB-COBB822615
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Cobb 08-14 Subaru WRX / 08-20 STI Air Oil Separator

COBB
COBB822615
700424680313
Oil Catch Cans
20+ Units In Stock - Ships Next Business Day
COBB, Engine, Oil, Oil Catch Cans
$ 595.00
$ 595.00

SKU: B822615   |   UPC: 700424680313

Cobb 08-14 Subaru WRX / 08-20 STI Air Oil Separator

The Cobb Air Oil Separator captures oil mist and vapor from the PCV system and turbo breather before it reaches the intake tract. Designed for 2008-2014 Subaru WRX and 2008-2020 STI models, it keeps charge air clean to support consistent power delivery and engine protection. Regular draining prevents oil accumulation in intercoolers and throttle body.

Key Features

  • Billet 6061-T6 Aluminum Body: Provides strength and corrosion resistance with a durable black anodized finish and laser-etched Cobb logo.
  • 3 oz Capacity: Holds substantial oil volume for extended track sessions or spirited driving without frequent emptying.
  • Stainless Steel Mesh Filter: Captures fine oil particles effectively and cleans easily for repeated use.
  • Integrated Check Valve: Blocks oil pull-through during deceleration, ensuring reliable separation under all conditions.
  • 4AN Fittings and Mounting Hardware: Ensures secure hose connections and simple bolt-on installation with provided bracket.

Product Notes

  • Drain reservoir every 1,000 miles or after track days to maintain performance.
  • Compatible with stock and aftermarket intake systems on EJ25 and FA20/24 engines.

Installation Notes

  • Professional installation recommended.
  • Bolt-on design mounts to factory battery tray location using included hardware.
  • Route hoses from PCV valve and turbo inlet pipe no cutting required on stock setup.

This Part Fits

Year Make Model Submodel
2008-2014 Subaru Impreza WRX All
2008-2014 Subaru Impreza WRX STI All
2015-2020 Subaru WRX STI All

Why Choose Cobb?

  • Developed through extensive dyno and track testing on Subaru platforms.
  • Precision CNC-machined components for exact fit and function.
  • Proven design used in professional racing applications.

Frequently Asked Questions

  • Q: Will this fit 2015-2020 STI models?
    A: Yes, it installs directly on 2008-2020 STI with EJ257 or FA24F engines using factory breather locations.
  • Q: What material is used in construction?
    A: High-grade 6061-T6 billet aluminum with anodized finish for longevity and heat resistance.
  • Q: What is the warranty and service interval?
    A: Backed by Cobb's 1-year warranty service filter and drain oil every 1,000 miles.

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Protective box, 10" x 8" x 6" dimensions
  • Weight: 2.8 lbs

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