skunk2 sway bar

i actually even went to one of their offices in hayward. all they said was becuz my springs and shocks were too soft(i was using tokico plus h&r spring before i got tein)(my car was/and now 2" low). and plus, after i installed the sway bar it started making noises(metal hitting sound), so i cant use it anymore.

oh, i just got my si rear sway bar today. but it looks sorry compare to the skunk2 bar though(13mm vs. 22mm?). but i think it's ok becuz i'll overcome it by adjusting the shocks.

but i still want to know why?