I took the RacePak from the PTE build and installed it in the SM. Data collection is very nice, and the display provides real time feedback on lap times.
I cut a plate from aluminum that would mate with the turn signal cluster mounting screws, and applied heavy duty Velcro.
The display attaches to the front of the plate:
I mounted the brain on the transmission tunnel. Tech flex protects the cables. You may notice the silicone glob where the power wiring connector used to be. The connector cracked along with the circuit board inside, so I soldered the wires to the circuit board traces. It’s ugly but it works.
The GPS antenna sits on the rear deck:
I also installed a passenger seat: