It's pretty simple again - all you need to do is install this framework (as an APK file) and then just install modules you want and use them as you wish...
Please, make a backup before installing the framework.
How to install:
- Download XposedInstaller.apk and install it
- Launch the Xposed Installer and click on "Install/Update"
How to install modules:
- Download <module>.apk and install it
- Launch the Xposed Installer and go to the "Modules" tab (you will also get there if you click on the notification warning you that the module is not enabled yet)
- Enable the module by checking the checkbox
Please note the Xposed Framework does not currently work on ART (causes bootloop). Switch to Dalvik to avoid this problem.
Full list of modules: Check HERE!