UMI Performance

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’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’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...

40+ years of moisture and abuse can leave your frame in bad shape, and unable to properly locate the body mounts. Our 8 piece kit is designed to weld-in and provide a sturdy surface and a properly...

UMI's 2628 leaf spring traction bars work to improve forward traction and reduce or eliminate wheel hop. These traction bars bolt to UMI leafs or factory leafs with no modification. Dramatically...

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 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...

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...

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’s A-body bump steer kit (1971-1972) is designed to reduce or eliminate toe change during suspension travel (also known as “bump steer”). Reduction of bump steer improves handling and...

This kit manufactured by UMI Performance includes a set of adjustable upper and lower rear control arms for the 1971-1975 GM H-Body. Both upper and lower control arms feature high quality Teflon...

UMI Performance’s rear upper control arms for the 1971-1975 GM H-Body are a direct bolt in replacement for the rear factory control arms. The light weight tubular construction is designed to...

UMI Performance’s rear upper control arms for the 1971-1975 GM H-Body are a direct bolt in replacement for the rear factory control arms. The light weight tubular construction is designed to...