Although this film is cut, there are a total of 43 differences in the unrated US version, and the edited UK version. These differences consist of:
*22 cut scenes
*16 scenes with alternative footage
*4 scenes with zoom
*1 additional scene in the UK version
The Unrated version is 100.84 seconds (~ 1:41 minutes) longer than the BBFC 18 version.
It seems that ALL of these are during the rape scenes, and none during the revenge scenes
I Spit on Your Grave 2 (Comparison: BBFC 18 - Unrated) - Movie-Censorship.com