UMI Performance

You thought the notorious South Side Machine lift bars were done? Well, we brought them back! The UMI lift bars replace your stock control arms adding tremendous track gains while keeping your ride...

You thought the notorious South Side Machine lift bars were done? Well, we brought them back! The UMI lift bars replace your stock control arms adding tremendous track gains while keeping your ride...

UMI Performance lower control arms our designed to replace your weak, rusted, factory-stamped arms, adding strength, rigidity and bushing improvement. Built using strong DOM steel tubing these direct...

UMI Performance lower control arms our designed to replace your weak, rusted, factory-stamped arms, adding strength, rigidity and bushing improvement. Built using strong DOM steel tubing these direct...

UMI Performance lower control arms our designed to replace your weak, rusted, factory-stamped arms, adding strength, rigidity and bushing improvement. Built using strong DOM steel tubing these direct...

UMI Performance lower control arms our designed to replace your weak, rusted, factory-stamped arms, adding strength, rigidity and bushing improvement. Built using strong DOM steel tubing these direct...

If you have raced your Mustang aggressively, on slicks, or even on the street and especially if your car is a 5-speed, you may have cracked torque boxes. Fox bodies don't have the best chassis to...

UMI’s Roto-Joint adjustable rear upper control arms are a bulletproof addition to your street or pro-touring car. UMI’s Roto-Joint upper control arms are suitable for street, strip or corner carving...

UMI’s Roto-Joint adjustable rear upper control arms are a bulletproof addition to your street or pro-touring car. UMI’s Roto-Joint upper control arms are suitable for street, strip or corner carving...

UMI’s adjustable rear upper control arms are a bulletproof addition to your street car. UMI’s upper control arms are suitable for street, strip or corner carving. The greaseable polyurethane bushings...

UMI’s adjustable rear upper control arms are a bulletproof addition to your street car. UMI’s upper control arms are suitable for street, strip or corner carving. The greaseable polyurethane bushings...

UMI’s Ultimate rear upper trailing arms for the Ford Mustang feature on-car adjustability combined with race quality rod ends. These adjustable arms can be used to tune pinion angle and lateral...

UMI’s Ultimate rear upper trailing arms for the Ford Mustang feature on-car adjustability combined with race quality rod ends. These adjustable arms can be used to tune pinion angle and lateral...

UMI’s rear upper control arms are high-quality, bolt-on, direct factory replacements designed to enhance rear suspension strength and traction while reducing suspension bind. Engineered for the 79-04...

UMI’s rear upper control arms are high-quality, bolt-on, direct factory replacements designed to enhance rear suspension strength and traction while reducing suspension bind. Engineered for the 79-04...