Products

Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on the borde...

This new replacement rear control arm mount replaces the stock control arm mount that attaches the rear upper control arm to the vehicle chassis. T...

This new replacement rear control arm mount replaces the stock control arm mount that attaches the rear upper control arm to the vehicle chassis. T...

A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sp...

A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading ...

A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sp...

A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sp...

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 contr...

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 contr...

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

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

With modern high grip tires, improved suspension and big power, today’s muscle cars need more help than ever to survive. This front frame brace i...

With modern high grip tires, improved suspension and big power, today’s muscle cars need more help than ever to survive. This front frame brace i...

This kit includes (1) set of our tubular single adjustable lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate ...

This kit includes (1) set of our tubular single adjustable lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate ...

Adjustability is one the most important things when tuning in your street cars suspension. That is why we have taken the time to develop the ultima...

Adjustability is one the most important things when tuning in your street cars suspension. That is why we have taken the time to develop the ultima...

UMI’s adjustable rear upper control arms are a bulletproof addition to your street car. UMI’s upper control arms are suitable for street, str...

UMI’s adjustable rear upper control arms are a bulletproof addition to your street car. UMI’s upper control arms are suitable for street, str...

UMI Performance adjustable upper control arms allow you to adjust your vehicles pinion angle for optimum performance, precise handling and improv...

UMI Performance adjustable upper control arms allow you to adjust your vehicles pinion angle for optimum performance, precise handling and improv...

Trailing arm mount braces are designed to reinforce the upper and lower front control arm mounts on your classic A-Body. The more power your ride m...

Trailing arm mount braces are designed to reinforce the upper and lower front control arm mounts on your classic A-Body. The more power your ride m...

Complete Kit Includes: (1) Set of Double Adjustable Lower Control Arms with Spherical Rod Ends (Item #4027) (1) Ser of Double Adjustable Upper Cont...