UMI Performance

UMI’s Roto-Joint adjustable rear upper control arms are a bulletproof addition to your street or pro-touring car. UMI’s Roto-Joint upper control arms are suitable for street, strip or corner...

UMI’s boxed rear lower control arms are a bulletproof addition to your car. Suitable for street, strip or corner carving, these arms minimize suspension deflection for a crisp handling setup and...

UMI’s boxed rear lower control arms are a bulletproof addition to your car. Suitable for street, strip or corner carving, these arms minimize suspension deflection for a crisp handling setup and...

UMI Performance 73-77 GM A-Body Rear Suspension Kit Non Adj - BlackThis Part Fits:YearMakeModelSubmodel1973-1977BuickCenturyBase1975-1977BuickCenturyCustom1976BuickCenturyIndianapolis 500 Pace...

UMI Performance 73-77 GM A-Body Rear Suspension Kit Non Adj - RedThis Part Fits:YearMakeModelSubmodel1973-1977BuickCenturyBase1975-1977BuickCenturyCustom1976BuickCenturyIndianapolis 500 Pace...

UMI’s rear control arm kit is a bulletproof addition to your car. Suitable for street, strip or corner carving, this kit minimizes suspension deflection for a crisp handling setup and less wheel...

UMI’s rear control arm kit is a bulletproof addition to your car. Suitable for street, strip or corner carving, this kit minimizes suspension deflection for a crisp handling setup and less wheel...

UMI Performance 73-81 GM F-Body SBC Engine Mount ClamshellsThis Part...

UMI Performance 73-81 GM F-Body SBC Poly Engine Mount KitThis Part...

UMI Performance 73-81 GM F-Body SBC Solid Engine Mount KitThis Part...

Weld-in body mount repair kit features precision laser cut steel patch pieces. Years of exposure to standing water can take its toll. Easy solution to repair the rusted area and ensure a solid...

UMI’s Race Proven #cornermax a-arm and mount kit brings race car handling to your truck. Double shear coilover-only mounts hold all popular coilover assemblies.This Part...

UMI’s Race Proven #cornermax a-arm and mount kit brings race car handling to your truck. Double shear coilover-only mounts hold all popular coilover assemblies.This Part...

The UMI Performance P/N 6410 flip kit lowers the rear of the 1973-1987 GM C10 truck six inches by relocating the axle above the leaf spring. The saddle bracket moves the axle rearward to keep the...

Heavy duty front and rear sway bar kit dramatically reduces body roll and improves cornering performance. Front tubular bar balances increased stiffness while saving weight. Solid 1″ rear Pro-Tour...