It may help if we knew what buggy and SCT you speck of but... With my Traxxas trucks it was putting a sway bar in the back and filling the gear diff with black grease. But, they are HCG trucks and prone to roll anyway. Also try a less aggressive tire set-up. An M3 compound instead of M4 on the rear to start. (Pro-line even still use that scale?) Shorter upper links in the rear too may help. Move them in one hole on the hub and bulkhead. Try to get the rear to "come around" and not "dig in". If you have any kind of VLA set-up you can try running the pins out board on the rear hubs and in board on the front hubs. Some people like to slow down there steering servo too. Just plan accordingly as it will not react as fast. Moving the shocks out more on the arms and tower can help too. But, everyone drives different so adjustments are different.
Side note all info is with ten+ year old trucks on an indoor clay track and may not work with these fancy buggys and trucks that are out now.
Or just slow down for the turn. See sig V