UMI Performance

UMI's direct bolt-on 3634 rear sway bar decreases body roll to ensure a great handling experience. Beefy 1.125" diameter solid sway bar bolts directly to UMI arms and also to factory arms with...

The UMI heavy duty tunnel brace reinforces the tunnel area and reduces chassis flex by replacing the weak factory stamped steel brace. Reinforcement of this area is critical because of the drive...

This rear suspension kit from UMI Performance includes a set of rear trailing arms and rear toe rod arms. Together these items help to maintain caster and camber settings for the rear tires...

This rear suspension kit from UMI Performance includes a set of rear trailing arms and rear toe rod arms. Together these items help to maintain caster and camber settings for the rear tires...

The rear toe rods control the camber alignment of the rear end preventing the tire from moving inward or outward during suspension load. The factory toe rods are made from flimsy stamped steel and...

The rear toe rods control the camber alignment of the rear end preventing the tire from moving inward or outward during suspension load. The factory toe rods are made from flimsy stamped steel and...

UMI’s 2518 anti-eccentric washers are designed to prevent unwanted alignment changes in your 5th Gen or G8 rear suspension. The 3/16” thick laser cut washers fit in the exact factory location and...

UMI Performance 1967 GM A-Body Bilstein Shock/UMI Spring Kit Factory HeightThis Part...

UMI Performance 1967 GM A-Body Lowering Kit 1in LoweringThis Part...

UMI Performance 1967 GM A-Body Lowering Kit 2in LoweringThis Part...

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 Sprint Cup chassis engineer, these springs are the ...

UMI Performance 64-66 GM A-Body Spring & Shock Kit Factory HeightThis Part...