I would have to say that STBs probably don't do much... I would save those 100 dollars for something more useful like bushings or anti-sway bars.
Even better... to be completely honest, I wouldn't bother with any suspension mods until you get springs/shocks or coilovers in there. Sure, you want cheap mods, we all do, but put the price of springs, bushings, STBs, subframe bushings, TC rods, etc etc and you can buy a spring/shock setup that would give you so much more.
Since your shocks and springs are the heart of your susp, it is, in my experience, useless to do anything if your most important part, your shocks (not so much springs, I guess) are shot. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/dozingoff.gif" border="0" valign="absmiddle" alt='
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