Engineered to 'Activate More Grip', sway bars are principally designed to reduce body roll or sway. By reducing body roll, lateral loads are spread more evenly across the tires thereby increasing cornering grip and improving outright performance. This Whiteline 22mm 2 point adjustable sway bar = more grip = better handling = outright performance - it's the best dollar for dollar handling improvement you can make to your vehicle. In fact, benefits extend to improvements in handling, safety and tire wear without affecting ride quality or comfort.
Nice bar - but the hardware is not that great. I bought this to fill a niche between two other rear bars I already have - so I used the end links from those. These end links are pretty bad. If this is your only rear bar, and you don't want to also buy endlinks, you should probably pass; For me it was perfect.