UMI Performance

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 ultimate on-car adjustable upper control arms for the rear...

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...

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...

UMI Performance adjustable upper control arms are designed to optimize your vehicle's performance by allowing you to adjust the pinion angle. These control arms are made with high-quality materials,...

UMI Performance adjustable upper control arms are designed to optimize your vehicle's performance by allowing you to adjust the pinion angle. These control arms are made with high-quality materials,...

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 makes the better chance of bending or breaking the...

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 makes the better chance of bending or breaking the...

Complete Kit Includes: (1) Set of Double Adjustable Lower Control Arms with Spherical Rod Ends (Item #4027) (1) Ser of Double Adjustable Upper Control Arms "Ultimate Arms" (Item #4017)Installation...

Complete Kit Includes: (1) Set of Double Adjustable Lower Control Arms with Spherical Rod Ends (Item #4027) (1) Ser of Double Adjustable Upper Control Arms "Ultimate Arms" (Item #4017)Installation...

The Stage 1 is perfect for the A-Body owner who wants a simple and effective suspension upgrade with real handling improvement. This kit includes our trusted 1.250” front sway bar and 1” rear sway...

This kit includes (1) set of our tubular lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate Arms". Both items are direct replacements of the OEM set up adding...

This kit includes (1) set of our tubular lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate Arms". Both items are direct replacements of the OEM set up adding...