UMI Performance

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...

UMI Performance 08-09 Pontiac G8 10-14 Camaro Rear Suspension KitThis Part...

UMI Performance 08-09 Pontiac G8 10-14 Camaro Rear Suspension KitThis Part...

UMI Performance 08-09 Pontiac G8 10-14 Camaro Toe Rods Adj PolyThis Part...

UMI Performance 08-09 Pontiac G8 10-14 Camaro Toe Rods Adj PolyThis Part...

UMI Performance 08-09 Pontiac G8 10-14 Camaro Toe Rods PolyThis Part...

UMI Performance 08-09 Pontiac G8 10-14 Camaro Toe Rods PolyThis Part...

UMI Performance 08-09 Pontiac G8 10-14 Camaro Trailing ArmsThis Part...

UMI Performance 08-09 Pontiac G8 10-14 Camaro Trailing ArmsThis Part...

Installation: Washers reuse factory GM bolt. Simply remove the factory eccentric washer and press in place the new UMI washer.This Part...

Umi Performance 63-87 GM C10 Front Sway Bar Brackets LoweredThis Part Fits:YearMakeModelSubmodel1978-1980ChevroletC10Big...

UMI Performance 64-66 GM A-Body Factory Height Springs RearThis Part...

Trailing arm mount braces are designed to reinforce the upper and lower front control arm mounts on your classic A-Body. The more power your ride makes the better chance of bending or breaking the...

UMI Performance 64-67 GM A-Body Rear Shock Tower Brace Bolt InThis Part...

Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on the borderline of "junk", bushing deflection and rusting ...

Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on the borderline of "junk", bushing deflection and rusting ...

Note: The UMI 4033 upper a-arm is designed to work with factory height or lowered cars. We do not recommend using the 4033 with cargo coils or above stock height cars, as the bump stop may contact...

UMI Performance 64-72 GM A-Body 1-1/4in Solid Front Sway Bar - Black

UMI Performance 64-72 GM A-Body 1in Lowering Spring Front - SetThis Part Fits:YearMakeModelSubmodel1967BuickGran...

Fitment Note: When installing on a after-market Ford 9" the drain plug guard may create a fitment issue.

Fitment Note: When installing on a after-market Ford 9" the drain plug guard may create a fitment issue.

2” Lowering with standard SBC, Pontiac 400 and aluminum head/intake Big Block Chevy as well as LS power.This Part Fits:YearMakeModelSubmodel1967BuickGran...

UMI Performance 64-72 GM A-Body 78-88 G-Body 1in Lowering Spring Rear

UMI Performance 64-72 GM A-Body 78-88 G-Body 2in Lowering Spring Rear

40+ years of moisture and abuse can leave your frame in bad shape, and unable to properly locate the body mounts. Our 14 piece kit is designed to weld-in and provide a sturdy surface and a properly...

Installation: New hardware and detailed installation instructions included. Bolting the drive shaft loop in requires drilling (4) holes in the vehicles floor pan. Installation process takes 30-45...

Installation: New hardware and detailed installation instructions included. Bolting the drive shaft loop in requires drilling (4) holes in the vehicles floor pan. Installation process takes 30-45...

Note: Rear shocks may not clear all exhaust tail pipes. UMI is not responsible for exhaust clearance issues. Brackets designed to fit factory rear ends, may not fit aftermarket rear ends.

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 400% more rigid...

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 400% more rigid...

UMI Performance 64-72 GM A-Body Tubular Front Lower A-Arms Polyurethane Bushings

Installation: Easy 1-hour bolt on installation requires no drilling, uses OEM hardware.

Installation: Easy 1-hour bolt on installation requires no drilling, uses OEM hardware.

Note: The UMI 4033 upper a-arm is designed to work with factory height or lowered cars. We do not recommend using the 4033 with cargo coils or above stock height cars, as the bump stop may contact...

Don't reuse old rusty bolts when installing aftermarket A-Arms when they can easily be replaced with new ones. Our kit includes new high grade hardware for installing your new upper and lower A-Arms...

UMI Performance 64-77 A-Body 70-81 F-Body GM Front Sway Bar 1-1/4in Solid

Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new one. Our kit includes all new hardware for installing both upper and lower rear control...

Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new ones. Our kit includes all new hardware for installing either upper or lower rear control...

This beefy 1” solid rear sway bar is designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension. Our sway bar is manufactured from 1” solid...

UMI’s high durometer polyurethane bushings replace the factory rubber rear end housing bushings. After many years of weather and abuse the factory rubber bushings tend to dry rot, crack and harden...