This is a great buy. The installation of this part was ridiculously easy; it must've nut taken more than 10-15 minutes once the car was on a lift.
This 15 minutes was probably the best thing ever happened to my car. Per Nick's recommendation, I got the 22mm ARB, which seamlessly complements the Koni Sport Kit my car already has. The anti-roll bar adds to the general rigidity of the car, but it's not until a curve where you can tell the real difference. Now my used-to-be flimsy, all-over-the-place '99 9-3 convertible feels sturdier and can take curves at speeds I didn't know were possible. In tight cornering I can feel how all four tires (Kumho Ecsta 711) grip the road and the car takes the turn as if it were on rails.
All in all, this is an awesome product. At $90, it is the best price/value added upgrade you can get. I suggest you make this product the first thing on your list!
Rating: [5 of 5 Stars!]