This change only sets the aspect ratio for anamorphic widescreen, however it does not remove the black bars, so I've added that hack as well (i don't know if you need to recalc XBE CRC or anything, i just modified the one byte needed in the code area, boots and works on my homebrew 360) : https://files.sshnuke.net/Shenmue2X_WideNoBars.7z
Changes the same function as the following Dreamcast mod: http://assemblergames.com/l/threads/widescreen-hacks.58620/page-20#post-855000
Images:
https://images.sshnuke.net/2016-10-16_01-15-44.jpg
https://images.sshnuke.net/2016-10-16_01-17-30.png
https://images.sshnuke.net/2016-10-16_01-17-37.jpg
Didn't replay through the entire game yet to see if it does it for all cutscenes, it should though.
The black bars were really annoying on xbox360 because the bottom-most line of the display is not occluded by them (and you can see it if you don't have overscan/are using a monitor), so I'm glad to have gotten rid of them.