SKU: 98999473542

COBB Air-Oil Separator for 2013-2018 Ford Focus

Sale price$193.50 Regular price$215.00
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Description

COBB Air-Oil Separator for 2013-2018 Ford FocusDESCRIPTION The COBB Air Oil Separator is placed within your Ford Focus ST's crankcase ventilation system and helps to prevent oil vapors from being introduced into the intake system. The COBB Air Oil Separator is of our own design and has been in the works for years, making tweaks and updates to ensure that it is a seamless installation, clears any third party emissions, an is the perfect upgrade to your engine. Ford's EcoBoost engine doesn't have a

DESCRIPTION

The COBB Air/Oil Separator is placed within your Ford Focus ST's crankcase ventilation system and helps to prevent oil vapors from being introduced into the intake system. The COBB Air/Oil Separator is of our own design and has been in the works for years, making tweaks and updates to ensure that it is a seamless installation, clears any third-party emissions, an is the perfect upgrade to your engine.

Ford's EcoBoost engine doesn't have a great spot to tap in, so we went with the route of incorporating the factory breather plate with a spacer plate that we created from 33% glass-filled nylon and is injection molded for perfect fitment. The COBB oil drain plate is sandwiched between the OEM air oil separator and engine block. It uses an additional COBB provided OEM gasket to maintain a leak-free interface with the engine block.

The COBB Air/Oil Separator system installs in series with the original PCV circuit, forcing air from the crankcase through a swirl pot and series of baffles that promote heavier oil particles in the blowby vapor to condense and collect as a liquid at the base of the canister. A drain line returns this condensed liquid oil to the crankcase.

This AOS kit that utilizes a drain-back system keeps valves cleaner and reduces chances of detonation by removing oil particles from the PCV gasses going to the intake manifold. This equates to a cleaner and stronger engine that can push more power with less maintenance or risk.

A Sound Symposer Delete is required to install this AOS. If you don't have one, follow this link to our COBB Sound Symposer Delete Kit.

WHY?

The COBB Ford 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.

FEATURES
Air/Oil Separator for Ford Focus ST 2013-2018
  • Billet Aluminum Tank Design
  • Bright Black Dip Anodizing
  • Additional Baffling At Both Plate and Canister
  • Laser Etched COBB Logo
  • Designed 100% in-house
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 98999473542

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Helen Toevs
San Leandro, US
★★★★★ 5
Raindrops
Format: Paperback
A fun way to know about rainbows.
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Reviewed in the United States on May 25, 2019
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Elizabeth C. Olliff
Draper, US
★★★★★ 1
Amateur
Format: Paperback
Lame art and bad prose. This amateur effort deceived my by one good review. Writing this review to tell you not to waste your money.
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Reviewed in the United States on March 25, 2019
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Shannon B.
Grantham, US
★★★★★ 5
Better then the competitors
Size: Medium Size
I bought these in both small and medium size. The small bag fits the Kitsch solid hair soap perfectly. They also fit a bar of Dove soap. Some types of soap, like Zest, are a tighter fit bit still work. If you want more of a washcloth style with extra suds, use the medium bag. The medium bag works well with those large bars of soap, like Duke Cannon Big Brick of soap. I hand these off little hooks in my shower so the bag dry faster and so I appreciate the loop they have on the corner. The folding top works way better then a drawstring. I also love the exfoliating texture. Overall, these are well worth the price.
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Reviewed in the United States on May 6, 2026
T
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toni
Louisville, US
★★★★★ 5
Good product
Size: Small Size
I actually testy liked this. Works great, fits smaller bar soaps
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Reviewed in the United States on April 27, 2026
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Alexander Giang
Lake Worth, US
★★★★★ 4
Good exfoliating soap bag
Size: Small Size
Pretty good soap bag. Does take a while to get it to foam soap, maybe I'm doing it wrong? Great scrubbing.
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Reviewed in the United States on April 9, 2026

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