Depends on the car, as some are more unmanageable than others. Try TCS on +1 until you get the hang of it, unless you're dead set on using no TCS. If the latter is the case, roll onto the throttle gradually as you exit corners or feather it -- don't mash down in the gas fully, unless you're going more or less straight.
If you still have issues, try softer tires. Try a wing for more rear downforce. Soften the rear springs if you have a custom suspension, to help increase rear traction.
If that's still not helping, move to an FF or 4WD platform. Otherwise, you'llneed to turn on the TCS, ASM, and Skid Recovery.