Bought mine used from a fellow Jeeper here on JF. I would say the rear Addco made it stable, but the front bar made it sporty. With the stock front bar going into a turn the front would roll just a bit and then "set", but now it doesn't roll, it's like it's already set so it just takes the turn so much better. I kept reading reviews where people said the rear bar makes the greater improvement, and I do agree because the stock rear bar is so terrible on a WJ, but the front did make a marked improvement for me as well and is a must have if you really want the best handling and enjoy taking curves. It's still a heavy SUV of course but the combination of front/rear Addco bars and Bilstein 5100 shocks make this thing handle better than I ever thought possible.