The Whiteline Front and Rear Sway Bars are designed to reduce body roll. The Sway Bars improve grip and performance of your Outback. With the Sway Bars lateral loads are distributed evenly across the tires which allows the tires to have stronger grip to surfaces improving the overall performance of your vehicle. The front sway bar is a 22mm 2 point adjustable sway bar and the rear is a 20mm 2 point adjustable rear sway bar. The 20mm and 22mm bars help to increase the stiffness of the bars further reducing chances of body roll. Other benefits include improvements in handling, and safety while still providing premium ride comfort and quality. This sway bar will also increase the longevity of the your vehicle's tires by improving tire wear. Installation is a 4 hour do it yourself installation process. This kit comes with all of the necessary parts for installation. Included in the kit is a front and rear sway bar, 4 links, 4 bushings, 2 lateral locks and 16 washers. The Rear Sway Bar is compatible with 2005-2009 Outback XT/XT Limited/2.5 XT models.