Nightmotorsport has Reinvented the Air/Oil Separator!

For years race and high performance street Subarus have been using air/oil separators (AOS) to separate the oil vapor which mixes with the air that comes out of the crank case ventilation, re-liquefy the oil, and return it to the sump. Said AOS is generally a medium sized cylinder mounted somewhere in the engine bay with several hoses running to it. It took the innovative minds at Nightmotorsport to go: "Wait, why does an air/oil separator have to be.... separate?". And thus the Nightmotorsport valve cover with integrated AOS was born!
These valve covers with integrated air/oil separators fit most (if not all?) Subaru EJ engines and can be found at nightmotorsport.com
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• Big Northwest Subaru M...
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$1300!? Who is your customer? Everyone will remain buying IAG AOS.