Products

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,...

UMI’s Corner Max line of race a-arms are designed from the ground up to be the best performing stock mount a-arm upgrade on the market. The P/N 4...

UMI’s Corner Max line of race a-arms are designed from the ground up to be the best performing stock mount a-arm upgrade on the market. The P/N 4...

UMI’s Corner Max line of race a-arms are designed from the ground up to be the best performing stock mount a-arm upgrade on the market. The P/N 4...

UMI’s Corner Max line of race a-arms are designed from the ground up to be the best performing stock mount a-arm upgrade on the market. The P/N 4...

UMI Performance single adjustable lower control arms feature an Energy Suspension polyurethane bushing set-up on one end and a QA1 spherical rod ...

UMI Performance single adjustable lower control arms feature an Energy Suspension polyurethane bushing set-up on one end and a QA1 spherical rod ...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Perf...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Perf...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Perf...

Improve performance and make your classic A-Body feel like a modern day muscle car with a complete set of fabricated tubular a-arms from UMI Perf...

UMI's 403256-3 a-arm kit adds 1.4 inches of much needed spindle height and includes Delrin lower a-arm bushings and adjustable rod end uppers, ma...

UMI's 403256-3 a-arm kit adds 1.4 inches of much needed spindle height and includes Delrin lower a-arm bushings and adjustable rod end uppers, ma...

Don't reuse old rusty bolts when installing aftermarket A-Arms when they can easily be replaced with new ones. Our kit includes new high grade hard...

Don't reuse old rusty bolts when installing aftermarket A-Arms when you can replace them with new ones. Our kit includes new high grade hardware fo...

UMI’s 1-¼" (32mm) solid front sway bar is the go-to bar for today’s modern handling muscle car. This bar reduces body roll and helps plant the...

UMI’s 1-1/4" sway bar is intended for Pro-Touring, road race, auto-x and corner carving. Each bar is manufactured from CNC bent 4140 CrMo which f...

UMI’s 1-1/4" solid front sway bar is intended for Pro-Touring, road race, auto-x and corner carving. Each bar is manufactured from CNC bent 4140 ...

UMI’s 1-5/16 (33.3mm) solid front sway bar is the heavy duty version of our popular 4035 bar, and is intended for Pro-Touring, road race, auto-x ...

UMI’s 1-5/16 (33.3mm) solid front sway bar is the heavy duty version of our popular 4035 bar, and is intended for Pro-Touring, road race, auto-x ...

Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new one. Our kit includes all new hardware...

Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new ones. Our kit includes all new hardwar...

The UMI P/N 2999 adds the finishing touch to allow full articulation of the GM 4-link rear suspension. By using 2999 and either Roto-Joints or rod ...

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...