ok i have a 99 si sway bar that i need to put on a 97 ex what all parts do i need to do so?

 

99-00 civic si endlinks, d brackets, bushings, and they peice that goes from d bracket to the subframe.

They only problem is the holes on a regular 96-00 civic subframe are bigger then a 99-00 si, so you need to finf a way to securly mount it to the subframe, a peice of metal,on the back and a bigger bolt with a nut will do, you will also need to drill out the bracket a bit.