I had a new one tumbler valve put on to pass SMOG in CA because I was getting a CEL on. It came off of a 2005 9-2X Aero. I've heard that in states without SMOG, people gut these out to destrict the flow to the turbo. I have this one complete unit for sale. The replacement was expensive as hell from Subaru. Let me know if you can use it for a project and make me an offer and it's yours. thanks.