UMI Performance

UMI Performance 70-81 GM F-Body Lower A-Arms Tall Ball Joints Race Version - 2655-1-B

UMI’s Corner Max line of race a-arms are designed from the ground up to be the best performing stock mount a-arm upgrade on the market. The P/N 2655-1 arms are strong yet lightweight and feature a...

UMI Performance 68-72 GM A-Body 70-74 GM F-Body Front Frame Brace - 2654-R

With modern high grip tires, improved suspension and big power, today’s muscle cars need more help than ever to survive. This front frame brace improves chassis rigidity, reduces steering gear...

UMI Performance 68-72 GM A-Body 70-74 GM F-Body Front Frame Brace - 2654-B

With modern high grip tires, improved suspension and big power, today’s muscle cars need more help than ever to survive. This front frame brace improves chassis rigidity, reduces steering gear...

UMI Performance 70-81 GM F-Body Upper A-arms Front Delrin Bushings - 2653-R

UMI’s 2nd Gen F-Body upper a-arms are a key component of a great handling muscle car. UMI’s P/N 2653 upper a-arms add caster to improve steering feel and reduce wandering. Strong tubular...

UMI Performance 70-81 GM F-Body Upper A-arms Front Delrin Bushings - 2653-B

UMI’s 2nd Gen F-Body upper a-arms are a key component of a great handling muscle car. UMI’s P/N 2653 upper a-arms add caster to improve steering feel and reduce wandering. Strong tubular...

UMI Performance 70-81 GM F-Body Upper A-arms Front Tall Ball Joints - 2653-1-R

UMI’s 2nd Gen F-Body upper a-arms are a key component of a great handling muscle car. Our P/N 2653-1 upper a-arms add caster to improve steering feel and reduce wandering while incorporating a...

UMI Performance 70-81 GM F-Body Upper A-arms Front Tall Ball Joints - 2653-1-B

UMI’s 2nd Gen F-Body upper a-arms are a key component of a great handling muscle car. Our P/N 2653-1 upper a-arms add caster to improve steering feel and reduce wandering while incorporating a...

UMI Performance 70-81 GM F-Body Front A-arm Kit Delrin Bushings Adj Tall Ball Joints - 265256-1-R

UMI’s 2nd Generation F-Body performance a-arms are perfect for the F-Body enthusiast seeking to improve the performance and blur the lines between race and street use. This kit features caster...

UMI Performance 70-81 GM F-Body Front A-arm Kit Delrin Bushings Adj Tall Ball Joints - 265256-1-B

UMI’s 2nd Generation F-Body performance a-arms are perfect for the F-Body enthusiast seeking to improve the performance and blur the lines between race and street use. This kit features caster...

UMI Performance 70-81 GM F-Body Front A-arm Kit Delrin Bushings Tall Ball Joints - 265253-1-R

UMI’s 2nd Generation F-Body a-arm kit, P/N 265253-1 is designed to make your classic cruiser feel like modern muscle. Increased positive caster combined with improved camber curve and low friction...

UMI Performance 70-81 GM F-Body Front A-arm Kit Delrin Bushings Tall Ball Joints - 265253-1-B

UMI’s 2nd Generation F-Body a-arm kit, P/N 265253-1 is designed to make your classic cruiser feel like modern muscle. Increased positive caster combined with improved camber curve and low friction...

UMI Performance 70-81 GM F-Body Front Lower A-arms Delrin Bushings - 2652-R

UMI’s 2nd Generation F-Body lower a-arms are perfect for the F-Body enthusiast seeking to improve the performance and appearance of their front suspension. The UMI 2652’s feature caster...

UMI Performance 70-81 GM F-Body Front Lower A-arms Delrin Bushings - 2652-B

UMI’s 2nd Generation F-Body lower a-arms are perfect for the F-Body enthusiast seeking to improve the performance and appearance of their front suspension. The UMI 2652’s feature caster...

UMI Performance 70-81 GM F-Body Tubular Upper & Lower A-arm Kit - 265153-R

UMI’s 2nd Generation F-Body a-arms are perfect for the F-Body enthusiast seeking to improve the performance and appearance of their front suspension. This kit features caster relocation of both the...

UMI Performance 70-81 GM F-Body Tubular Upper & Lower A-arm Kit - 265153-B

UMI’s 2nd Generation F-Body a-arms are perfect for the F-Body enthusiast seeking to improve the performance and appearance of their front suspension. This kit features caster relocation of both the...

UMI Performance 70-81 GM F-Body Front Lower A-arms Polyurethane Bushings - 2651-R

UMI’s 2nd Generation F-Body lower a-arms are perfect for the F-Body enthusiast seeking to improve the performance and appearance of their front suspension. The 2651’s feature caster relocation of...

UMI Performance 70-81 GM F-Body Front Lower A-arms Polyurethane Bushings - 2651-B

UMI’s 2nd Generation F-Body lower a-arms are perfect for the F-Body enthusiast seeking to improve the performance and appearance of their front suspension. The 2651’s feature caster relocation of...

UMI Performance 70-81 F-Body A/C Delete Panel - 2650-B

UMI's new A/C delete panel for the 2nd Generation F-Body is an excellent solution for the large hole left in the firewall after removing the A/C unit. This 0.125” thick light weight aluminum panel...

UMI Performance 70-81 F-Body A/C Delete Panel - 2650

UMI's new A/C delete panel for the 2nd Generation F-Body is an excellent solution for the large hole left in the firewall after removing the A/C unit. This 0.125” thick light weight aluminum panel...

UMI Performance Poly/Rod End Sway Bar End Links - 2649

Sway bar end links feature poly bushings on the sway bar end and a high misalignment rod end to attach to the a-arm. Used to attach stock style sway bar to UMI double shear lower a-arm mounts.

UMI Performance 70-81 GM F-Body Lowering Spring Front 2in Lowering - 2647F

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 stiffer than stock to provide increased performance with...

UMI Performance 70-81 GM F-Body Sway Bar Mount Plate rear - 2636

UMI Performance 70-81 GM F-Body Sway Bar Mount Plate rearThis Part...

UMI Performance 70-81 GM F-Body Adjustable Sway Bar Rod End Rear - 2635-R

UMI Performance 70-81 GM F-Body Adjustable Sway Bar Rod End RearThis Part...

UMI Performance 70-81 GM F-Body Adjustable Sway Bar Rod End Rear - 2635-B

UMI Performance 70-81 GM F-Body Adjustable Sway Bar Rod End RearThis Part...