UMI Performance

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’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’s leaf spring and Delrin shackle kit is a heavy duty, Made In USA solution to lowering the rear of your 2nd Gen. These springs feature high quality US Steel, multi-leaf construction and lower the...

UMI’s leaf spring and poly shackle kit is a complete, high performance solution to lower the rear of your 2nd Gen. These springs feature high quality US Steel, multi-leaf construction and lower the...

UMI’s rear leaf spring is a high perfomance solution to lowering the rear of your 1970-1981 Camaro or Firebird. These springs feature high quality US Steel, multi-leaf construction and lower the car...

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

2628DB traction bar pivots are required when using the 3/4" relocation position on UMI 2624 brackets or other "Herb Adams mod" style brackets.Installation InstructionsThis Part...

2628DB traction bar pivots are required when using the 3/4" relocation position on UMI 2624 brackets or other "Herb Adams mod" style brackets.Installation InstructionsThis Part...

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’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’s new mounting hardware includes zinc plated high grade bolts, washers and Ny-lock nuts for mounting your new or factory front upper a-arms.This Part...

UMI introduces the 2nd Gen F-body & 78-96 B-Body adjustable upper a-arms, offering a perfect balance of performance and street versatility. These a-arms provide enhanced steering precision with added...