I have a synapse BOV for sale for 08+ wrx. it might work on the older years but im not 100% sure. just know that it fit mine. I bought the car used and it came with it brand new in the box. I put it on and it got relly annoying after a while. Not really my thing. I still have the box and all parts. In great condition, no problems with it at all, just going back to stock. TExt me at 480-294-4309 if interesteed. I can get you pisc but im sure you know what it looks like.