HD Enabler for YouTube cydia tweak enables YouTube HD video playback without WiFi connection.
By default, the YouTube app limits quality selection over a cellular connection and restricts playback to a lower quality resolution. This tweak removes that restriction and permits up to 720p playback over any data connection.
This version supports devices with YouTube version 2.3.0 or earlier (current version as of January 9, 2014).
NOTE: Be mindful of cellular data plan usage when viewing HD videos over a cellular connection.
No options to configure.