i have the S/T rear sway/tie combo on the back of my del sol. handles real nice, very neutral, but watch out for some snap oversteer if you get into a turn too hot and happen to stab the brakes. I would also recommend either the Beaks reinforcement kit, or taking some measures to prevent the bolts from tearing out.
Personally i wouldnt go with Beaks, i bought the kit, and wasnt even able to use. I dont understand how so many people have bought and installed it with no problems, and i do this shit for a living. i had one of the bolts strip out because there is not alot of metal for them to grab onto, and ended up having to nut and bolt it.
long story short, its a great kit, car will handle real well, its really not hard to install, and youll be happy with it when your done. just do your homework about installation and some kind of subframe reinforcement.
-Chris