If you just installed new coilovers and your suspension noise got worse the problem is not the coilovers. Putting another new set of coilovers on is just throwing money at it.
Since its riding poorly check your strut mount plates (hats), make sure everything is tight to spec. Look for cracks in the sway bar bushings, pull one end of the end links and give them a good wiggle feeling for play. Jack up a corner at a time and check, ball joints, TREs, and for anything that is loose and might be bouncing against the fenders. Also check to make sure your door checks aren't broken.