PONTIAC GRAND PRIX UMI Performance

UMI Performance Lowering Springs 4050R

UMI Performance Lowering Springs 4050R

Lowering Springs, Rear, Coil Type, Black Powdercoated, Buick, Chevy, GMC, Oldsmobile, Pontiac, Pair

Part Number: UPI-4050R

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Front and Rear Sway Bar Kits 403534-R

Sway Bars, Front/Rear, Steel, Red Powdercoated, Solid, 32mm, 25mm Dia., Buick, Chevy, Oldsmobile, Pontiac

Part Number: UPI-403534-R

4.7 out of 5 stars ( 27 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Front Sway Bars 3035-B

Sway Bar, Black, Steel, Front, 1.25 in. Diameter, GM, G-Body, Kit

Part Number: UPI-3035-B

4.56 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Complete Front End Kit 403133-1-B

A-Arms, Front Lower, Front Upper, Tubular, Tall Upper Ball Joints, Black, Steel, Pair

Part Number: UPI-403133-1-B

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Lowering Springs 4051

Lowering Springs, Front and Rear, Coil Type, Black Powdercoated, Buick, Chevy, GMC, Olds, Pontiac, Set of 4

Part Number: UPI-4051

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Solid Rear Sway Bars 4034-R

Sway Bar, Rear, Steel, Red Powdercoated, 1 in. Diameter, Buick, Chevy, Oldsmobile, Pontiac, Each, Kit

Part Number: UPI-4034-R

4.77 out of 5 stars ( 26 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Front Reinforcement Braces 3053-B

Chassis Stiffeners, Front Reinforcement Braces, Front Lower Position, Steel, Black Powdercoated, Buick, Chevrolet, Oldsmobile, Pontiac, Each

Part Number: UPI-3053-B

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Bolt-In Viking Rear Coilover Kits 4071

Coilover kit, Relocation, 1968-1972 GM A-Body Complete Coilover Kit, Relocation

Part Number: UPI-4071

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Rear Non-Adjustable Upper and Lower Control Arm Kits ABR413-B

Control Arms, Rear, Tubular, Non-adjustable, Steel, Black Powdercoated, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: UPI-ABR413-B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Front and Rear Sway Bar Kits 303534-B

Sway Bars, Black, Steel, Front 1 1/4 in./Rear 1 in. Diameters, GM, Kit

Part Number: UPI-303534-B

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Complete Front End Kit 303133-R

1982-2003 S-10/S-15 Tubular Front Upper & Lower A-Arm Kit-Red

Part Number: UPI-303133-R

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Adjustable Strut Tower Braces 3055-B

Strut Braces, Rear Upper, Black Powdercoated, Steel, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: UPI-3055-B

4.59 out of 5 stars ( 17 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Front Non-Adjustable Lower A-Arms 4031-B

Control Arms, Tubular, Steel, Black, Front Lower, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: UPI-4031-B

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Driveshaft Safety Loops 4500-B

Drive Shaft Loop, Steel, Black, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: UPI-4500-B

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Rear-End Housing Replacement Bushings 3000-B

Differential Housing Mount Bushings, Black, Polyurethane, GM, Pair

Part Number: UPI-3000-B

4.87 out of 5 stars ( 30 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Rear Double Adjustable Lower Control Arms 4043-B

Control Arms, Double Adjustable, Rear Lower, Steel, Black Powdercoated, Buick, Chevy, GMC, Oldsmobile, Pontiac

Part Number: UPI-4043-B

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Rear Adjustable Upper Control Arms 4037-B

Control Arms, Rear Upper, Adjustable, Tubular, Black Powdercoated, Steel, Pair

Part Number: UPI-4037-B

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Control Arm Reinforcement Brace Kits 4028-B

Control Arm Mount Braces, Bolt-On, Adjustable Steel, Black Powdercoated, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: UPI-4028-B

4.86 out of 5 stars ( 14 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Front Sway Bars 3035-R

Sway Bar, Red, Steel, Front, 1.25 in. Diameter, GM, G-Body, Each

Part Number: UPI-3035-R

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Rear Non-Adjustable Lower Control Arms 4015-B

Control Arms, Tubular, Rear, Lower, Steel, Black Powdercoated, Chevy, Buick, Oldsmobile, Pontiac, Kit

Part Number: UPI-4015-B

4.94 out of 5 stars ( 18 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Roto-Joint Rear-End Housing Bushings 2999

Bushings, Replacement, Differential Position, Billet Aluminum/Steel, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: UPI-2999

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Rear Adjustable Upper Control Arms 4026-B

Control Arms, Tubular, Rear, Upper, Steel, Black, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: UPI-4026-B

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Rear Double Adjustable Upper and Lower Control Arm Kits 302717-B

A-Arms, Rear Upper/Lower, Tubular, Bushings, Black Powdercoated, Steel, Kit

Part Number: UPI-302717-B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Bolt-In Viking Front Coilover Kits 3058-650

Coilover Kit, 1978-88 GM G-Body, 1982-2003 S-10/S-15, Front, Bolt-In, Viking Double Adjustable Shocks, 650 lbs. Springs, Street, Kit

Part Number: UPI-3058-650

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

UMI Performance Lowering Springs 4051F

Lowering Springs, Front, Coil Type, Black Powdercoated, Buick, Chevy, GMC, Oldsmobile, Pontiac, Pair

Part Number: UPI-4051F

4.31 out of 5 stars ( 13 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

PONTIAC GRAND PRIX UMI Performance Parts and Accessories