UMI Performance

Performance Auto Parts for LS Swaps, Muscle Cars & Modern Builds

Shop thousands of in-stock performance parts from trusted brands—engine upgrades, suspension, exhaust, fuel systems, and more. Fast shipping and real-world support from fellow car enthusiasts.

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UMI Performance 89

Product type

Brackets 6
Bump Stops 1
Coilovers 4
Control Arms 18
Crossmembers 1
Differential Bushings 5
Driveshaft Loops 1
Engine Mounts 2
Hardware Kits - Other 12
Leaf Springs & Accessories 1

Lowering Springs 10
Panhard Bars 2
Strut Bars 2
Subframes 2
Suspension Arms & Components 6
Sway Bars 15
Tie Rods 1

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UMI Performance

UMI Performance 78-88 GM G-Body Front Reinforcement Brace Bolt In

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$299.99

UMI3053-R

.CrossmembersBraces All Brackets Fabrication UMI Performance

The UMI Performance, Inc. reinforcing front frame brace is used to stiffen the front frame horns and front crossmember area on the GM G-Body...

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UMI Performance

UMI Performance 78-88 GM G-Body Front Reinforcement Brace Bolt In

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$299.99

UMI3053-B

.CrossmembersBraces All Brackets Fabrication UMI Performance

The UMI Performance, Inc. reinforcing front frame brace is used to stiffen the front frame horns and front crossmember area on the GM G-Body...

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UMI Performance

UMI Performance 78-88 GM G-Body Lowering Spring Front 2in Lowering

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$169.99

UMI3051F

All Chassis & Suspension Lowering Springs Suspension UMI Performance

A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction...

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UMI Performance

UMI Performance 78-88 G-Body Lowering Spring Kit 2in Lowering

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$319.99

UMI3051

All Chassis & Suspension Lowering Springs Suspension UMI Performance

A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction...

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UMI Performance

UMI Performance 78-88 GM G-Body Solid Front & Rear Sway Bar Kit

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$419.99

UMI303534-B

.SwayBarsEndLinks All Suspension Sway Bars 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”...

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UMI Performance

UMI Performance 78-88 GM G-Body 1.250in Solid Chrome Moly Front Sway Bar

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$259.99

UMI3035-B

.SwayBarsEndLinks All Suspension Sway Bars UMI Performance

UMI Performance 1.250" (32mm) solid front sway bar is designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced...

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UMI Performance

UMI Performance 78-88 GM G-Body Control Arm Reinforcements/Frame Braces

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$159.99

UMI3028-R

.ControlArmsPanhardArms .CrossmembersBraces All Brackets Fabrication UMI Performance

Trailing arm mount braces are designed to reinforce the rear upper and lower front control arm mounts on your 1978-1988 G-Body vehicle. The more...

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UMI Performance

UMI Performance 78-88 GM G-Body Control Arm Reinforcements/Frame Braces

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$159.99

UMI3028-B

.ControlArmsPanhardArms .CrossmembersBraces All Brackets Fabrication UMI Performance

Trailing arm mount braces are designed to reinforce the rear upper and lower front control arm mounts on your 1978-1988 G-Body vehicle. The more...

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UMI Performance

UMI Performance 78-88 GM G-Body Double Adjustable Upper & Lower Rear Control Arms Kit

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$619.99

UMI302717-B

.ControlArmsPanhardArms All Chassis & Suspension Control Arms Suspension UMI Performance

Complete Kit Includes: (1) Set of Double Adjustable Lower Control Arms with Spherical Rod Ends (Item #3027) (1) Ser of Double Adjustable Upper Control...

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UMI Performance

UMI Performance 78-88 GM G-Body Tubular Non-Adjustable Lower Control Arms

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$229.99

UMI3015-R

.ControlArmsPanhardArms All Chassis & Suspension Control Arms Suspension UMI Performance

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,...

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UMI Performance

UMI Performance 78-88 GM G-Body Adjustable Upper & Lower Control Arm Kit

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$519.99

UMI301417-B

.ControlArmsPanhardArms All Chassis & Suspension Control Arms Suspension UMI Performance

This kit includes (1) set of our tubular single adjustable lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate...

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UMI Performance

UMI Performance 65-87 GM Polyurethane Rear End Housing Replacement Bushings

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$49.99

UMI3000-R

.BushingsMounts .Differentials All Chassis & Suspension Differential Bushings Drivetrain UMI Performance

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...

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UMI Performance

UMI Performance 70-81 GM F-Body Lowering Spring Front 2in Lowering

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$169.99

UMI2647F

All Chassis & Suspension Lowering Springs Suspension UMI Performance

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...

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UMI Performance

UMI Performance 82-92 GM F-Body Boxed Style Weld-In Subframe Connectors

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$449.99

UMI2400-B

.CrossmembersBraces All Subframes Suspension UMI Performance

Minimize chassis flex and increase performance capabilities on your 1982-1992 GM F-Body with boxed style weld-in subframe connectors from UMI Performance. Subframe connectors are...

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UMI Performance

UMI Performance 98-02 GM F-Body Manual / Torque Arm Relocation Kit

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$269.99

UMI2207-R

.CrossmembersBraces All Crossmembers Drivetrain UMI Performance

The torque arm relocation kit from UMI Performance is designed to remove the front mounting point of the torque arm off the transmission and...

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UMI Performance

UMI Performance 93-02 GM F-Body Tunnel Brace Mount Long Tube Header Set-Ups w/ Loop

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$279.99

UMI2203AS-B

.CrossmembersBraces All Chassis & Suspension Suspension Suspension Arms & Components UMI Performance

UMI Performance 93-02 GM F-Body Tunnel Brace Mount Long Tube Header Set-Ups w/ LoopThis Part Fits: Year Make Model Submodel 1993-2002 Chevrolet Camaro Base...

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UMI Performance

UMI Performance 82-92 GM F-Body Front Sway Bar 35mm

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$319.99

UMI2117-R

.SwayBarsEndLinks All Suspension Sway Bars UMI Performance

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...

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UMI Performance

UMI Performance 82-02 GM F-Body Rear Sway Bar 22mm Tubular

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$259.99

UMI2113-R

.SwayBarsEndLinks All Suspension Sway Bars UMI Performance

The UMI 22mm (7/8”) light weight tubular rear sway bar is designed to reduce body roll, understeer and increase cornering capabilities resulting in a...

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UMI Performance

UMI Performance 93-02 GM F-Body Front and Rear Sway Bar Kit Tubular

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$579.99

UMI211213-R

.SwayBarsEndLinks All Suspension Sway Bars UMI Performance

UMI’s light weight tubular sway bars are designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension. The...

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UMI Performance

UMI Performance 93-02 GM F-Body Front Sway Bar 35mm Tubular

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$329.99

UMI2112-R

.SwayBarsEndLinks All Suspension Sway Bars UMI Performance

The UMI 35mm (1-3/8”) tubular front sway bar is designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced...

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UMI Performance

UMI Performance 82-02 GM F-Body Panhard Bar Relocation Kit

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$189.99

UMI2024-R

.ControlArmsPanhardArms All Panhard Bars Suspension UMI Performance

The panhard bar relocation kit is designed to replace the upper panhard rod support while relocating the lower panhard bar. By doing so, this...

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UMI Performance

UMI Performance 82-02 GM F-Body Panhard Bar Relocation Kit

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$189.99

UMI2024-B

.ControlArmsPanhardArms All Panhard Bars Suspension UMI Performance

The panhard bar relocation kit is designed to replace the upper panhard rod support while relocating the lower panhard bar. By doing so, this...

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UMI Performance

UMI Performance 82-02 GM F-Body Tubular Non-Adjustable Lower Control Arms

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$99.99

UMI2015-B

.ControlArmsPanhardArms All Chassis & Suspension Control Arms Suspension UMI Performance

UMI’s heavy duty control arms are direct replacements of the weak, factory stamped rear lower control arms. UMI’s control arms are constructed of 1-1/2”...

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UMI Performance

UMI Performance 82-02 GM F-Body Lower Control Arm Relocation Brackets - Bolt-In

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$109.99

UMI2012-B

.ControlArmsPanhardArms All Chassis & Suspension Suspension Suspension Arms & Components UMI Performance

Wheel hop or traction issues? We have the solution! Optimize your vehicle's instant center and improve forward traction by lowering the rear of the...

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UMI Performance

UMI Performance 93-02 GM F-Body Tubular Subframe Connectors - Bolt-In

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$349.99

UMI2002-R

.CrossmembersBraces All Subframes Suspension UMI Performance

The first and only 2-point tubular bolt-in subframe connector is now available from UMI Performance. This set up is designed to tie the front...

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UMI Performance

UMI Performance 82-03 S10/S15 Front Sway Bar 1-1/4in Solid

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$259.99

UMI3833-R

.SwayBarsEndLinks All Suspension Sway Bars UMI Performance

UMI’s 1-¼" (32mm) solid front sway bar greatly improves the cornering capability of the S10/S15. This bar reduces body roll and helps plant the...

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UMI Performance

UMI Performance 08-09 Pontiac G8 10-14 Camaro Toe Rods Poly

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$159.99

UMI2520-R

All Chassis & Suspension Suspension Suspension Arms & Components UMI Performance

The rear toe rods play a crucial role in controlling the camber alignment of the rear end, preventing the tire from moving inward or...

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UMI Performance

UMI Performance 68-72 GM A-Body Rear Shock Tower Brace Bolt In

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$159.99

UMI4058-R

.CrossmembersBraces .ShocksStruts All Strut Bars Suspension UMI Performance

This 100% jig built, bolt-in brace ties the rear upper shock mounts together to share the load and stiffen the chassis. Strong 1-1/4” tubing...

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UMI Performance

UMI Performance 64-72 GM A-Body Rear Coilover Kit Control Arm Relocation Bolt In

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$259.99

UMI4057

.Coilovers .ControlArmsPanhardArms All Coilovers Suspension UMI Performance

UMI’s bolt-in rear coilover kit allows full ride height, spring rate and damping adjustments, while trailing arm adjustment enables fine tuning of instant center....