As a few have said before strut bars have nothing to do with side to side movement aka body roll. To attack roll you want to attack the sway bars. When you get bars make sure you do your research because they can also change handling characteristics such as oversteer and understeer. So research the setups out there and go with what looks best to your driving preferences. When looking at sway bars don't forget to upgrade your endlinks as well, they will give you the most out of the bar and handle the extra strength. After sways you feel your roll is still to much for your likings you'll need to look deeper into shock/spring/coilover setup. Good luck!