UMI Performance

The UMI Performance spring and shock kit is designed to lower your car 1 while providing a huge improvement in handling and control. These kits feature our race quality lowering springs which provide...

The UMI Performance spring and shock kit is designed to lower your car 1 while providing a huge improvement in handling and control. These kits feature our race quality lowering springs which provide...

UMI’s lowering package features four Viking double adjustable shocks, a hybrid front coil-over spring system with 250 lb front springs, and your choice of 1 or 2-inch UMI rear lowering springs. The...

UMI’s lowering package includes four Viking double adjustable shocks, a hybrid front coil-over spring system with 350 lb front springs, and your choice of 1 or 2-inch UMI rear lowering springs. The...

UMI’s lowering package includes four Viking double adjustable shocks, a hybrid front coil-over spring system with 450 lb front springs, and your choice of 1 or 2-inch UMI rear lowering springs. The...

UMI’s lowering package includes four Viking double adjustable shocks, a hybrid front coil-over spring system with 550 lb front springs, and your choice of 1 or 2-inch UMI rear lowering springs. The...

Rear lower control arms are a must improvement for any General Motors A-Body vehicle. Our lower control arms our designed to replace your weak, rusted, factory-stamped arms, adding strength,...

Rear lower control arms are a necessary upgrade for any General Motors G-Body vehicle. Our arms are designed to replace weak, rusted factory arms, providing added strength, rigidity, and bushing...

Rear control arms are an essential suspension upgrade for your GM vehicle. Stock control arms can lead to traction loss and poor handling due to bushing deflection and weak material. Our tubular...

Rear control arms are an essential suspension upgrade for your GM vehicle. Stock control arms can lead to traction loss and poor handling due to bushing deflection and weak material. Our tubular...

UMI Performance single adjustable lower control arms are designed to provide rear end adjustment and reduce rear end bind. The polyurethane bushing set-up on one end and QA1 spherical rod end on the...

UMI Performance single adjustable lower control arms are designed to provide rear end adjustment and reduce rear end bind. The polyurethane bushing set-up on one end and QA1 spherical rod end on the...