Actually I have that backwards.. on a US model there is a plug under the turbo. On the JDM there is a plug above the oil filter, and the sending unit on under the turbo. Just swap those. It's possible to have 2 sending units. One just acting as a pliug... but you have a plug on the other side that you are going to remove to fit the other sending unit, so why not just put on the other side?