UMI Performance UMI Performance 68-72 GM A-Body Tubular Upper & Lower Control Arms - 401516-B Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on the borderline of junk, bushing deflection and rusting weak... $369.99
UMI Performance UMI Performance 70-81 GM F-Body Front Subframe Repair Kit - 2662 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... $44.99
UMI Performance 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... $169.99
UMI Performance UMI Performance 70-81 GM F-Body Rear 2in Leaf Springs Shackle Kit - Poly - 262025 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... $529.99
UMI Performance UMI Performance 70-81 GM F-Body Rear Leaf Spring Set 2in Lowering - 2620 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... $449.99
UMI Performance UMI Performance 70-81 Polyurethane Leaf Spring Shackle Kit - 2625 UMI's polyurethane shackle kit works with UMI P/N 2620 rear leaf springs as well as other stock location leaf springs. The kit is a great choice for street and performance use. Kit includes bushings... $109.99
UMI Performance UMI Performance 73-87 GM C10 Front Lowering Springs 2in drop - 6452F UMI’s 2″ front lowering spring kit features high quality construction and a medium firm 900 lb/in spring rating. UMI springs are suitable for daily driving, back road corner carving and even... $149.99
UMI Performance UMI Performance 74-92 GM F-Body GM G-Body Frame Side Solid Engine Mounts - 90051 UMI’s solid motor mounts replace the factory rubber motor mounts decreasing engine movement for maximal vehicle performance. Solid mounts bolt directly to the frame of the 1974-1992 Camaro/Firebird... $69.99
UMI Performance UMI Performance 75-80 GM H-Body Single Adjustable Panhard Bar- Rod End - 5021-B UMI’s tubular panhard bar is a direct replacement for the flimsy stock panhard bar, it adds strength, bushing improvement and rear end adjustment. This is a must for rear end centering after... $139.99
UMI Performance UMI Performance 78-02 GM Rear Control Arm Bolt Upgrade Kit - 3001 Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new ones. Our kit includes all new hardware for installing either upper or lower rear control... $16.99
UMI Performance UMI Performance 78-87 GM G-Body AC/Heater Box Delete Panel - 3030 This delete panel is designed to eliminate both the heater box and air conditioning unit from the engine bay of your vehicle. Removal of the A/C unit and heater box instantly removes 30 pounds from... $49.99
UMI Performance UMI Performance 78-88 G-Body Lowering Spring Kit 2in Lowering - 3051 A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sprint Cup chassis engineer, these springs are the... $319.99
