Perrin Performance sway bars will help you fine tune the handling of your sports car. We recommend the 19mm sway bar upgrade for drivers wanting sportier handling on stock or comparable tires. A real driving enthusiast will enjoy the feel of a larger rear sway bar as it reduces under steer and in some cases adds over steer for drifting enthusiasts. When upgrading tires to grippier compounds and wider widths the larger sizes may be just what you are looking for. All bars are laser cut with MIG welded bar ends for precise placement. Utilizing this style of manufacturing process gives the bars precision fitment, higher quality and a fail free design. All Perrin sway bars include polyurethane bushings for a crisp response and better turn in.