Sport displays are cool but not accurate and should not be used to measure power.
With that being said, a piggyback works by tricking the ECU into thinking its running stock power, that's why the power increase does not show on your display.
The ECU tune will show the added power but again do...
This was when the BMW 340 was first released so probably 2016
the intake was the BMS B58 intake and the downpipe is VM 4" B58 downpipe (no longer offered).