UMI Performance

More about Roto-Joint Technology….. UMI's Roto-Joint, short for Rotational Joint, allows 28 degrees of total rotation and unrestricted movement throughout the vehicles suspension. The Roto-Joint is...

The UMI Watts Link is designed as a key component to optimize the 3rd and 4th Gen F-car solid axle rear suspension. The combination of lateral locating ability and roll center height adjustment makes...

The UMI Watts Link is designed as a key component to optimize the 3rd and 4th Gen F-car solid axle rear suspension. The combination of lateral locating ability and roll center height adjustment makes...

The UMI Watts Link is designed as a key component to optimize the 3rd and 4th Gen F-car solid axle rear suspension. The combination of lateral locating ability and roll center height adjustment makes...

The UMI Watts Link is designed as a key component to optimize the 3rd and 4th Gen F-car solid axle rear suspension. The combination of lateral locating ability and roll center height adjustment makes...

Replacement torque arm bushing for factory style mount on 1982-2002 GM F-Body.Installation InstructionsThis Part...

Our tubular "on-car" adjustable panhard bar replaces the flimsy stock stamped panhard bar while adding increased strength and rear end adjustment. This is a must for rear end centering after vehicle...

Wheel hop or traction issues? We have the solution! Optimize your vehicle's instant center and improve forward traction by lowering the rear of the lower control arm 2", 2-3/4", or 3-1/4". These...

Wheel hop or traction issues? We have the solution! Optimize your vehicle's instant center and improve forward traction by lowering the rear of the lower control arm 2", 2-3/4", or 3-1/4". These...

Wheel hop or traction issues? We have the solution! Optimize your vehicle's instant center and improve forward traction by lowering the rear of the lower control arm 2", 2-3/4", or 3-1/4". These...

Wheel hop or traction issues? We have the solution! Optimize your vehicle's instant center and improve forward traction by lowering the rear of the lower control arm 2", 2-3/4", or 3-1/4". These...

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...

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...

UMI's on-car adjustable lower control arms are supplied with a spherical rod end and polyurethane bushing combination. This set-up is designed for street performance and street enthusiast. The...

UMI's on-car adjustable lower control arms are supplied with a spherical rod end and polyurethane bushing combination. This set-up is designed for street performance and street enthusiast. The...