under normal to brisk pace driving, no noticeable difference but under fast hard silly cornering there's maybe very slightly less initial turn-in wobbliness but that's prob cos of the high sided sluggish 185/70/13 tires. overall only a tiny improvement
i just upgraded to 195/50/15 toyo's which dramatically changes the grip level so dunno how much lower bar is contributing but with upper & lower arms, whiteline swaybars, bilstein suspension this car corners hard n stable