I got my '99 Si rear sway bar for $80 + shipping. This was for the ENTIRE set up....everything (even down to the bolts) that I needed. Since you car is an Ex (like my Lx), everything is all set for you to have rear sway bar...you just need to add the parts. There is no drilling required, as all the holes are already there. Everything from the Si sway bar fits perfectly without any modifcation or changing pieces (such as end links like with the GSR, Type R, etc bars). It is such an easy install...should take you no more than an hour. I would recommend this unless you want to spend a lot of extra money and time.