I have the Eibach ARB's which are adjustable, 2 point on the fronr, 3 on the back. These come with ARB bushes anyway, but I think Alex is talking about the Banana arm bushes. I have these, and have to say there was an improvement over stock. I changed the ARB's myself on the drive, which was fun. lol
The front one was easy, rear one less so, but it is a DIY job if your up for it. Id say remove the back box of the exhaust though, as its pretty impossible without doing it. Believe me, i spent an hour trying. The adjustment can be done with the car stationary if you dont mine laying on the ground, and once you have done it a couple of times, is 5 minutes per corner.