[DRACO A5OG]

Sorry can't give you %%'s but I can give you my seat of pants feel:

I have uped my sways to the '86-89 thicker front and rears. It did improve the sway but I gained some looseness when I hit corners to quickly. I was also worried with the OEM '85 T-bars it may stress the sway bar mounts too much and snap the mount welds. Like many have experienced here.

With the combination of Strut Bar, Thicker Sways and Larger T-bars 22/29, she rides like she is on rails. I do not worry about snapping the Rear Sway Bar Mounts. I also learned how to control her thru the quick corners.

Caveat, albeit stiffer but I carry alot of stuff in my daily so it isn't that bad. At the track when I unload her, she is pretty stiff.
Jim