Originally posted by Strepto
Nope, sorry. The RS NEVER came with a front LSD (I don't know of any street Subaru to ever come from the factory with a front LSD). In 2000 a rear LSD was added to the RS and Forester L (not sure about Legacy GT). In 2002 the rear LSD was removed from the RS.
Not sure if it was optional in the L, but the 2000 Forester S (like my own) has a standard rear LSD.
edit: Strepto caught his "oops" so that makes my post redundant.