you're gonna need the back mount from a 99-00 Si( thats both parts of the back mount, the part that bolts to the transmission and the urethane mount that bolts to the crosstie), you can use the passenger side mount from your d-series, you'll need the passenger side mount that mounts to the front of the transmission from an si(i didnt even use this), and you'll need the a/c mount that Hasport sells(i didnt use this either). my back mount didn't line up right, for some reason it was about 1/2 inch to the left, so i just flipped the urethane around and only bolted 2 bolts down, and then welded the mount down. ghetto, yes, but it works.