The GM A-body platform is one of the most popular muscle cars to modify. Now, UMI Performance has assembled a made-in-the-USA kit to lower the vehicle an inch while substantially improving performance. 

Official Release:

UMI Performance, Inc is proud to introduce our revised Stage 1 GM A-Body handling kit. The Stage 1 is perfect for the A-Body owner who wants a simple and effective suspension upgrade with real handling improvement. This kit includes our trusted 1.25-inch front sway bar and 1-inch rear sway bar combined with 1-inch lowering springs and UMI monotube shocks.

The sway bars reduce body roll and provide a nice balance when handling at the limit. UMI’s 530 lb./in. front springs and 130 lb./in. linear springs are precision wound from premium CrSi wire and feature medium stiffness to control body movement and reduce floating while still providing a comfortable ride.

The new UMI monotube shocks feature a large diameter piston and nitrogen charge to dampen bumps and provide a crisp feel without being harsh. The shock is configured with heavy-duty mounts to ensure durability and fits in the stock location. Choose UMI’s Stage 1 as a first step to transforming your A-Body into a capable daily driver or corner carver. Every component in this kit, as with all UMI products, is Made In USA.

Features:

• Includes shocks, sway bars, lowering springs, and hardware
• Reduced body roll
• Comfortable yet performance oriented compression valving
• Made in the USA