it should have sway bars on it stock, unless somebody took it off.
I'm assuming it's stock height etc since you didn't' say otherwise... replacing the shocks with stiffer ones may help lessen body sway (at the expense of ride quality of course)
of course, it is an SUV which = top heavy brick on wheels... so if you want it to handle good i suggest the best mod would be to sell it and buy a sports car.