I've decided to get a rear sway bar to stiffen up the rear a bit, I took a look at Eibach's website and I see the Anti-Roll kit. My quesiton is do they sell the front and rear sway bars seperately? or do they both come together in a package.

What's the going price for this kit? My car doesn't have a front or rear sway bar, it's a Canadian Si (american: Ex) so what other additional parts and bolts would I need to purchase to install them?