Air Oil Separator or AOS versus a catch can? Which should you choose? In this video, I explain what an air oil sperate or AOS is and does, what a catch can is, and what the right choice is between the two. So if you drive a Subaru WRX or a WRX STI, or any other forced induction car, give this a watch to learn about how an AOS or catch can will help your ride!

I also talk about how AOS and catch can systems work, so if you have ever wondered, does a catch can work? I answer that!

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