UMI????????s complete kit replaces the weak, factory stamped lower control arms and panhard bar with our heavy duty tubular setup. These direct bolt-on replacements minimize wheel hop, improve cornering while lowering ET's and helping track consistency. The panhard bar greatly increases rear stability, controls side movement and body flex while allowing easy on car adjustments. The lower control arms help to reduce unwanted wheel hop and improve straight line traction. Control arms and panhard bar are constructed from mild steel tubing with CNC machined ends and polyurethane bushings.