UMI Performance

UMI Performance solid sway bars are designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension. The 1.250” front sway bar is more rigid...

UMI Performance 78-88 GM G-Body Spring/Shock Kit 1in LoweringThis Part Fits:YearMakeModelSubmodel1978-1987BuickRegalBase1988BuickRegalCustom1982-1983BuickRegalEstate...

UMI Performance 78-88 GM G-Body Spring/Shock Kit 2in LoweringThis Part Fits:YearMakeModelSubmodel1978-1987BuickRegalBase1988BuickRegalCustom1982-1983BuickRegalEstate...

UMI Performance 78-88 GM G-Body Spring/Shock Lowering Kit 1in Rear 250lb

UMI Performance 78-88 GM G-Body Spring/Shock Lowering Kit 1in Rear 350lb

UMI Performance 78-88 GM G-Body Spring/Shock Lowering Kit 1in Rear 450lb

UMI Performance 78-88 GM G-Body Spring/Shock Lowering Kit 1in Rear 550lb

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...