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Killer B Motorsport Air Oil Separator
2008-2014 Subaru WRX / 2015-2021 STI / 2005-2009 Legacy GT
Features & Product Details
Air/oil separators are a common upgrade and modification for the Subaru EJ as harmful oil vapors like to make their way into the intake which can create many problems. This will coat the valves with oil and soot, your octane rating will be effective and you will have detonation issues as well.
The Killer B Motorsport Air/Oil Separator is the result of years worth of engineering, along with research and development to remove oil in liquid and vapor form from the vented crankcase gases. This will prolong the performance and the life of your engine to reassure that your engine is performing at peak levels without worrying about the prevalent air/oil separation issues found in the Subaru crankcase ventilation system.
SPECS:
Specifications
PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED
REVIEWS & CUSTOMER MEDIA
My Subie shop said it was quite the PITA to install this (About 3.5hrs). Especially since there are zero instructions and just a poorly produced video by Killer B. Hopefully it'll perform well enough to forget about the install.
QUESTIONS & ANSWERS
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Q: Tune Required? sbud4 years ago
Hello, Does this kit require a tune?
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A: No it will not
Devan M. @ RallySport Direct 4 years agoWas this answer helpful?
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Q: Fitment deggrant34 years ago
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A: No, it will not.
Devan M. @ RallySport Direct 4 years agoWas this answer helpful?
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Q: Install..?.. MikeW1775 years ago
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A: There isn't a downloadable instruction guide but there is a video instruction guide: https://www.youtube.com/watch?v=rBvx3NeOoEk
Luis L. @ RallySport Direct 5 years agoWas this answer helpful? -
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A: They have a PDF on their site for the install: https://www.killerbmotorsport.net/media/product_instruction/KBM_AOS_Install_Guide.pdf A heads up about it's location/mounting. If you have a strut tower bar ( have a Cusco on my car) you will have to modify the bracket to lower the AOS for clearance, which also may put the drain line, from the bottom of the AOS too low and not allow the oil to drain back into the crankcase. Their AOS catch can add-on will solve that issue. I've added a photo of how the bracket will need to be modified to clear, with my set up on my '11 Sti Hatchback.
BluHalo
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Q: Cusco strut bar fitment SLlM5 years ago
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A: At this current time it is not confirmed to fit.
Tyler A. @ RallySport Direct 5 years agoWas this answer helpful?
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