This is a uncensored clip taken from the "R" rated 1983 Australian VHS tape of 'Mad Max 2' (aka 'The Road Warrior'). As of 2007 this is the only release of 'Mad Max 2' in its original uncut form. This scene was one of the many cut in the international version of the film.
Hopefully, interest in this video will prompted Warner Bros. Into releasing a complete, uncut special edition on DVD (not just a barebones Blu-Ray disc)
There were two scenes trimed from the "international version" of the film.
The one shown here which has a slightly longer shot of the arrow being pulled from Wez's arm and another scene where the boomerang in the head of Wez's slave can be seen.
There is also an alternate voice at the start of the film.