The pre-cut trans tunnel sides don't quite meet at the top.
So I used some of the extra material provided and filled in the gaps, hopefully this won't cause any clearance issues, I don't think it will since the material is quite thin and compressible.
The pre-cut piece for the seat back wall was one piece and taller than it need to be, I cut it in half in order to make it easier to work with and trimmed a good bit off the top.
When putting the drivers side foot-well carpet back in don't forget to tuck it under this plastic piece which serves to keep it from getting into the accelerator pedal. This piece of plastic is a bitch - it's held on by two screws (easy) and a plastic body rivet which is just an absolute pain.