UMI Performance 2" Lowering Suspension Spring Kit 4 Springs BlackGM G-Body 1978-88 - Kit Valve Spring Compressor We bring GPS navigation and

We bring GPS navigation and wearable technology to the automotive

Black powder coated finish

A foot-operated pedal controls the rotation of the tire

This complete SWR Meter Kit includes a compact SWR-power meter and cables (as shown) for easy connectivity and testing

They utilize the best features from Holley's Race Bred 4150 HP(TM) carbs

UMI Performance 2" Lowering Suspension Spring Kit 4 Springs BlackGM G-Body 1978-88 - Kit Valve Spring Compressor We bring GPS navigation andA 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 best in the business. Our front springs are wound from 5160 CrSi premium wire and feature a linear 600 lb in rate. The rear springs are wound from 9254 CrSi premium wire and feature a linear 130 lb in rate. The linear rate provides consistent handling