Wondering what I need to do to install a 2.0 replacement in place of my 2.5 in my 2011 WRX hatch. I know that I have to swap over all of the accessories from the 2.5 to the 2.0. The main thing is I don't know what gaskets and seals I'm going to need. I also need a new clutch and was wondering if a 2.5 clutch would bolt up the same. Any answers would be greatly appreciated.