UMI Performance GBF450-1 Coilover Adjustable Lowering Kit with Viking Double Adjustable Shocks

The UMI Performance GBF450-1 is a complete lowering package designed to transform your vehicle's handling and stance. This comprehensive kit includes four Viking double adjustable shocks, a hybrid front coilover spring system, and your choice of 1" or 2" lowering Hotchkis rear springs. Hand-built in Lakeville, Minnesota, these shocks deliver professional-grade performance with moderately increased spring rates for improved handling.

Kit Includes:

• (2) Front coilover shocks, double adjustable with 19 compression and 19 rebound settings
• (2) Rear shocks, double adjustable with 19 compression and 19 rebound settings
• (2) Front springs with choice of 250, 350, 450, or 550 lb spring rate
• (2) Rear springs with choice of 1" or 2" rear drop

Key Features:

• 0-3" lowering range up front with easy adjustment; 1" or 2" drop in the rear
• Bolt-in installation with no welding or spring compressor required
• Tune from street to strip to corner carving at the turn of a knob—no tools required
• Independent compression and rebound adjustment allows precise suspension tuning
• Lower ride height improves handling by lowering center of gravity and optimizing upper A-arm geometry
• Premium quality Made in USA springs, shot peened and coated for durability

Spring Rate Guide:

• 250 lb: 11" tall springs for drag race only (serious lightening required)
• 350 lb: Small block cruise or drag race with lightening required
• 450 lb: Small block cruise, big block drag race
• 550 lb: Small block handling, all big blocks except drag

Baseline Shock Settings:

• Street: 6C/8R all around
• Corner carving: 10C/12R all around
• Strip: 6C/2R front, 6C/6R rear

Optional Accessories: Spanner wrench and thrust bearing kit available separately for easier height adjustments while shock stays mounted. The thrust bearing kit is placed between the spring and spring seat for smoother rotation during adjustment and is highly recommended.

This hybrid coilover system delivers maximum performance and the Pro-Tour look you want, with the adjustability to dial in your suspension for any driving situation.