Originally Posted by HinshawWRX
Hard to tell anything from that picture. Original owner?
To my knowledge the system is the same across the board when used, so it should goto both heads without quesiton.
Yes I've owned the car since brand new. I'm wondering if 07 STI's have an OEM plate and have the passenger side head blocked off from the factory, but only use 1 solenoid. (On the driver side)
I believe 07 and 08+ STI heads are different due to dual AVCS. I can't imagine my shop mixed up my heads with someone else's.