[Rwillia4]

Usually loosening up the rear doesn't make for better handling. You are going to create a bunch more understeer if you remove the rear sway bar. Are you lifting the inner front tire around turns? Why do you think removing the rear sway bar will make it handle better?
Sway bars are nice because they don't have a huge negative effect on the ride but make the handling better. If you're removing sway bars you will have to get some thicker springs and stiffer shocks to make up the difference.
If the car is understeering, you can increase rear sway bar diameter or decrease front sway bar diameter to restore balance. To correct oversteer with sway bars, it is necessary to install either a smaller rear bar or a larger front bar to achive a more neutral feel.