UMI Performance

The UMI Performance weight jack kit for 1982-1992 GM F-Body is designed to give your classic muscle car a firm ride geared toward auto-x and road race with occasional street use. This race kit is...

The UMI Performance weight jack kit for 1982-1992 Camaro and Firebird is designed to give your daily driver a medium-firm ride worthy of corner carving as well as auto-x and road race. This...

The UMI Performance weight jack kit for 1982-1992 Camaro and Firebird is designed to give your daily driver a medium-firm ride worthy of corner carving as well as auto-x and road race. This...

2215AS - 1982-1992 GM F-Body Tunnel Mount T/Arm Mount w/ Loop – Fits TH350 & T5This Part...

UMI coilover specific lower A-arms are shipped fully assembled and ready for direct bolt in installation. Spring bucket delete saves weight. They feature greaseable Delrin bushings for smooth bind...

UMI coilover specific lower A-arms are shipped fully assembled and ready for direct bolt in installation. Spring bucket delete saves weight. They feature greaseable Delrin bushings for smooth bind...

UMI coilover specific lower A-arms are shipped fully assembled and ready for direct bolt in installation. Spring bucket delete saves weight. They feature greaseable polyurethane bushings, premium...

UMI coilover specific lower A-arms are shipped fully assembled and ready for direct bolt in installation. Spring bucket delete saves weight. They feature greaseable polyurethane bushings, premium...

UMI’s 35mm (1-⅜”) solid front sway bar is designed to reduce body roll and increase responsiveness and cornering capabilities of the 3rd Gen. UMI’s front sway bar is 22% more rigid than the hollow...

UMI’s 35mm (1-⅜”) solid front sway bar is designed to reduce body roll and increase responsiveness and cornering capabilities of the 3rd Gen. UMI’s front sway bar is 22% more rigid than the hollow...

Installation Note: Relocation brackets eliminate the offset factory sway bar clamshell and now use off the shelf sway bar bushings and mounts. Factory sway bar mounts will not work with new sway bar...

UMI’s competition 3rd Gen F-Body front weight jack system replaces the factory spring with a tough, adjustable weight jack bucket and a custom wound ultra-premium performance spring. This kit gives...