On the passenger side, you needd to slacken the Oil filter relocation arm and swing it up out of the way to get to the last bolt that holds the bracket to the block. There are 4 bolts in total, M8 thread with a 10mm socket head.

You may also need to remove the plenumn to mount arm support bracket aswell if it is still fitted, thats only 2 bolts and easy to get to.