We mainly sell Coolingmist and some add ons from the Aquamist kits. The Coolingmist progressive controller has an onboard 3 bar MAP sensor so you just run a vac. line to it making that part easy.
Wiring is a matter of 2 power wires and 2 grounds for a Coolingmist progressive kit. The Coolingmist progressive controller has a quick disconnect plug and play harness and inline fuse the way it comes out of the box, so the wiring is simple. Most failsafes add 1-2 extra wires each.
Most people won’t be wiring anything into their ECU. Only certian aftermarket piggybacks and standalone have features worth integrating since the progressive controller the kit comes with is relatively powerfull on its own.
-Mike