AOS vs. Catch Can

Flatirons Tuning Tech Tip - What is the difference between an Air-Oil Separator and a Catch Can?

Catch Cans have been around for a long time, and so have Air-Oil separators for that matter. But Air Oil Separators are becoming much more the standard these days, especially with Subaru's.

So what is the difference?

We have put together this video to hopefully explain why you would want one or the other, and what would be best for your application.

We hope this helps, and thanks for watching!