If you are using all the factory pieces for a 2014-2017 it should bolt in using the existing rack as in those days it was an add-on. However there is two things that may have to be addressed. One- and I am not 100% sure of this one but in 2014 the wiring harness may not have included all the circuits/wiring for the unit and it's control module and fused motor power supply..but it may. Two- and I am fairly sure about this one-all non EPS units came with a 350 watt stator and rectifier where all that have EPS had the 500 watt system. You may find that the charging system won't keep up with the battery's load with the EPS. It will pull as much as 20 amps at max assist. Just means you will need the other stator and rectifier/regulator.
For the wiring look in the rear floor compartment. Yours may or may not have the main fuse in it like they do in 2015 but if so there should also be another empty fuse holder for the EPS motor power. If it does, then the rest is likely there.