bouncing cars are the result of A-springs being cut to lower car (BAD BAD CHOICE-stop being cheap and just buy some lowering springs) or B-shot shocks. NOT the result of having coilovers. They ARE stiffer, which is want imporoves handling, looks, and decrease nast body roll, but do not result in a "hyper bounce". Maybe you live in an area that follows option A too much Rice Kit.