If there is any power gain by installing that filter, and I've played around on dynos enough to make en educated guess there isn't, the gains are eaten up by the hot air and a simple shield isn't likely to help that. If you could find some way to fully enclose it and duct it to outside air...
Don't know what type of EFI system the Kia uses but I would research a way to read IAT (Intake Air Temperature) via the OBDII port. Might be a programmer or some other means. Read the IAT for a few days with the modified setup, bearing in mind that come summer, the underhood will get a LOT hotter down there in Mississippi. Reinstall the original filter and housing and drive around for a while monitoring IAT again and note the differences. If the open setup is substantially hotter then you are actually LOSING power most of the time. It's remotely possible you might gain a little at the high end... 4500-5500 rpm or more... but how often do you rev like that? The hot air will be costing you power down low in everyday driving as well as fooling the EFI. What will happen is that the IAT sensor will be reading a hot temp and the PCM will want make the adjustments for it, but that IAT reading may conflict with another reading from another sensor, such as coolant temp, so the EFI system will be flummoxed and perhaps not make the correct fuel trim adjustments. Not optimal.