Did you just use lowering springs or get upgraded sport springs?
They might each have a different spring constant depending on what you get.
I mean if you get a REALLY stiff spring you won't be rolling much, but your fillings might get jarred loose

 

This debate is getting a bit long winded.

Sport "Lowering" Springs. The purpose is to lower the ride height of the car. They do this by reducing the overall size while usually increasing the tension. The tension is increased to prevent bottoming out. Well design springs will be progressive in spring rate and therefore allow for better handling in adverse/changing conditions.

Sway bars. The purpose is to reduce sway. Spring do NOTHING to transfer the compression of a spring on the outside of a turn, versus the opposite wheel on the inside of the turn. Sway is a result of a vehicle with independently sprung wheels. Granted, a stiffer spring will allow for less movement overall and hence reduce sway. However, with properly designed sway bars, the amount of tension can be transferred from outside to inside very effectively while maintaining excellent ride quality. On a OEM height vehicle, a stiffer sway bar would be needed to replicate a weaker bar on a lowered car because of the amount of torque being applied.

So, put simply. Lowering Springs Lower, Sway Bars reduce Sway.

MW

 

well

I see Beans point changed my coilovers out in my Maxima to 10k/8ks and there is no roll anymore... then again... there is no compliance whatsoever hahaha

these coilovers are coming out and JICs going in- they did take away the roll but they did alot of other things too

sway bars on my SC just helped amazingly with the body lean and handling- the combo of new bushings and sways was HUGE