UMI Performance

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 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 Performance's short shifter handle is designed to give you the feel of a short shifter for a fraction of the price. Places your hand in the correct comfortable position for quick shifts and less...

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...

Replace the rubber factory rear end housing bushings with a polyurethane setup from UMI. Over time, rubber bushings dry rot, crack and harden, decreasing your ride quality and vehicle performance...

Replace the rubber factory rear end housing bushings with a polyurethane setup from UMI. Over time, rubber bushings dry rot, crack and harden, decreasing your ride quality and vehicle performance...

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...

The Ford Mustang is well-known for its ability to produce high amounts of low end torque and incredible 60-foot times. It is also known for its weak rear control arm mounting points. The upper and...

Viking's specially valved double adjustable rear shocks are designed to optimize performance during auto-x and road race events. These shocks feature 19 independently adjustable compression and 22​...

If you have pushed your Mustang to the limit, whether on the track or the street, you may have encountered issues with cracked torque boxes. These reinforcements are specifically designed to...