Easiest way to tell is if you have the larger MIB2 head unit display in the car, depending on exact build date, its possibly my16 if august.
Regarding tune, the cars are almost identical from 2016 to 2019 mechanically, unless the tune requires the MIB2 interface not sure why it wouldn't work.. Easier to get an APR style ecu tune and be done with it : )
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