GrimmSpeed Air Oil Separator Red 08-14 WRX / 05-09 Legacy GT / 09-13 Forester XT / 05-09 Outback XT

Enhance your Subaru’s engine performance with the GrimmSpeed Air Oil Separator, designed specifically for 2008-2014 WRX, 2005-2009 Legacy GT, 2005-2009 Outback XT, and 2009-2013 Forester XT models. This premium AOS removes oil from the crankcase ventilation system, preventing oil buildup in the intake and improving overall engine efficiency and reliability.

Crafted from fully machined billet aluminum with an anodized finish, the GrimmSpeed AOS offers durability and a sleek engine bay appearance. Its maintenance-free design requires no mesh media or draining, while user-replaceable O-ring seals ensure long-term reliability. The unit retains the factory PCV valve for hassle-free installation, making it a perfect upgrade for Subaru enthusiasts seeking a clean and efficient engine setup.

Ideal for Subaru owners focused on performance and engine longevity, this air oil separator reduces detonation, oil consumption, and poor emissions. Upgrade your Subaru’s forced induction system with this trusted solution. Shop now at Subimods and experience improved engine health and performance.