Lowering Springs

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...

UMI p/n 2661 1970-1981 Camaro and Firebird Extended Coilover Mount is used to mount a true racing coilover into the front of your 2nd Gen. This wel...

UMI’s 2nd Gen F-Body lowering springs are wound from 5160 CrSi premium wire and feature a linear 600 lb/in rate. UMI’s front springs are stiffer th...

UMI’s performance lowering springs are built to lower the 3rd Gen approx. 1” - 1.5” and increase the spring rates for a crisp handling experience a...

UMI’s P/N 2405 spring perch kit is used as an upper spring mount in conjunction with our 2400 series k-member. The 2405 spring perch kit is an econ...

UMI’s P/N 2405 spring perch kit is used as an upper spring mount in conjunction with our 2400 series k-member. The 2405 spring perch kit is an econ...

UMI's rear weight jacks provide ride height adjustment and excellent handling for your 3rd or 4th Gen GM F-Body. The kit includes custom wound prem...

UMI's rear weight jacks provide ride height adjustment and excellent handling for your 3rd or 4th Gen GM F-Body. The kit includes custom wound prem...

UMI's rear weight jacks provide ride height adjustment and excellent handling for your 3rd or 4th Gen GM F-Body. The kit includes custom wound prem...

UMI's rear weight jacks provide ride height adjustment and excellent handling for your 3rd or 4th Gen GM F-Body. The kit includes custom wound prem...

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 r...

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 r...

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 car...

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 car...

UMI’s performance lowering springs are built to lower the 4th Gen rear approx. 1.5” and increase the spring rates for a crisp handling experience. ...

UMI’s performance lowering springs are built to lower the 4th Gen front end approx. 1.25” and increase the spring rates for a crisp handling experi...

UMI’s performance lowering springs are built to lower the 4th Gen approx. 1.25” - 1.5” (1.25” front and 1.5” rear designed to level the car) and in...

UMI Coilover Spring 2.5" x 12" x 850 lb/in - Slight barrel taper for shock clearance

UMI Coilover Spring 2.5" x 12" x 600 lb/in - Slight barrel taper for shock clearance

UMI Coilover Spring 2.5" x 10" x 275 lb/in - Slight barrel taper for shock clearance