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2001 2.5RS Coupe
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Hi guys, new to Subaru's (used to Honda's), don't know where to find intake/vacuum/hose diagrams online so i made this thread. I just got this 2.5RS a few days ago and trying to figure it all out. Going through the bay, I assume these two blue hoses from the side of the intake air box go to the heads as the PCV breathers.

2001 2.5RS Coupe stock motor, OE intake is secondhand and I am not sure which year or vehicle the previous owner got it off of.

1)Where does the hose coming from the right head go to on the intake box?




2)Where does this hose to the left of the throttle body go to? (i'm going to reconnect it but would like some insight on its purpose/function)




3)What is this hole on the intake box for and why is it just open?
 

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11 wrx & 15 fozzy 2.5i
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2,000 Posts
The firts one seems to be for the valve cover breather, there should be a nipple close to the edge at on that side of the engine.

The second one looks like the one that attaches to the PVC system and crankcase breather if not the other valve cover breather.

About the hole don't worry..
 
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