anyone try the buick rear STB? i understand the buick front STB requires a little modification so i think i'll wait on the front but i was thinking of doing the rear for now and replacing the sway bar bushings.

how big of a difference should i expect? im not looking to go racing but i would like to stiffen it up a bit. are the buick STB worth while or should i suck it and spend the dough on the more expensive ones (double$+shipping)