so yesterday i installed my new TRD rear sway bar, and overall the instal;ation was pretty straightforeward....got everything tight and installed, and i set the rsb on the competition setting....drove it around yesterday and everything seemed pretty good...however today when i was driving around. i noticed the car making a loud clunk from the rear end over any sort of road imperfection/bump, as if something was hitting something else or something was loose...i checked under the car and everything looks just as it should and the car drives great (less body roll FTW

, but this noise is driving me nuts! does anyone have any idea what could be causing this? or what i should check?