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Old 01-09-2017, 01:19 PM   #34
JSube
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Quote:
Originally Posted by Kimsey47 View Post
Which AOS are you using in your STI? I'm basically a daily driver that will bomb some mountain and valley roads so it looks like the grimmspeed should suit me well from what I've read up on.
To actually be able to separate any air & oil in an AOS, IMO, you need a recirculating system that has an outer coolant jacket to keep temps up in the AOS itself. I have a Perrin but I know the IAG version is well liked now too. The Grimmspeed is an AOS only because they call it that, but it doesn't have any meaningful function. It's a mystery to me how a company that makes a lot of good products can make such a useless piece for such an essential engine protection mod.
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