Engines and Components› Oiling Systems

Killer B Motorsport

Killer B Motorsport Air Oil Separator Barebones Kit Subaru STI 2008 / Subaru WRX 2008-2014

$359.00

SKU: K005 GR-MV3S-B

In Stock
In Stock
Ships by Jun 20
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Killer B Motorsports Barebones Air Oil Separator is designed to prevent harmful oil contaminants from entering the engine's intake system. It removes oil in both liquid and vapor form from vented crankcase gases and functions with a vacuum source from the turbo inlet, unaffected by turbo size. It includes hardware and barb fittings but no hoses.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandKiller B Motorsport
Part NumberK005 GR-MV3S-B

Videos

Our Killer-B Motorsports Air Oil Separator Review on Scotty's 2011 STIs

Our Killer-B Motorsports Air Oil Separator Review on Scotty's 2011 STIs
Killer B Motorsport Air Oil Separator Install

Killer B Motorsport Air Oil Separator Install
2015 SUBARU WRX STI - Killer B AOS - Part 1 - Overview/Installation/STI Status Update - OCTurboJoe

2015 SUBARU WRX STI - Killer B AOS - Part 1 - Overview/Installation/STI Status Update - OCTurboJoe

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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