You can't since DI4bI0 has not released a spk for version 5.0.16-105871 - http://spk.diablos-netzwerk.de/#hidehistory_virtualbox
If you need it now, then you can try to modify the installer.sh and change:
From:
VIRTUALBOX_VER="5.0.14"
VIRTUALBOX_BUILD="105127"
To:
VIRTUALBOX_VER="5.0.16"
VIRTUALBOX_BUILD="105871"
The install script will then download the latest package from virtualbox.org during the setup.
DISCLAIMER it might not work, the kernel module files might be version specific.