///INSTALL///
drag the data folder where you have installed your skyrim and replace everything that appears that already exists

///UNINSTALL///
to undo the mod you have to go to meshes / actors / character / character assets
maleheadkhajiit.nif
eyeskhajiit.nif
eyeskhajiitvampire.nif
and in the folder
meshes / actors / character / character assets / mouth
malemouthkhajiit.if