The Watts Link is the ultimate upgrade for 2005-up Mustang owners who want razor sharp handling and improved lap times. This kit bolts in place of the factory panhard bar and brace making installation quick, simple and 100% bolt in. It has been engineered to keep the rear-end perfectly centered and aligned under cornering, acceleration and braking. The adjustable design of this unit allows you to change the roll center of the rear resulting in better traction.