Progress Technology 77.1000.4545 Coilover Spring and Shock Assembly

The Progress Technology Coilovers Series II (CS2) delivers adjustable coilover performance at an entry-level price point, making it an ideal choice for budget-conscious racers and enthusiasts seeking improved handling and stance. This twin-tube coilover system provides the essential features needed for street and track use without the premium cost of fully rebuildable units.

Key Features:

• Twin-tube shock design for reliable damping performance
• Sealed damper construction (non-rebuildable)
• 2.50-inch inner diameter race springs for consistent spring rates
• Adjustable ride height for customized stance and handling
• Economical alternative to premium coilover systems
• Featured on ESPN's PINKS racing show

The CS2 series combines proven twin-tube damper technology with quality race springs to deliver improved cornering response and reduced body roll compared to stock suspension. The adjustable spring perches allow you to dial in your desired ride height while maintaining proper suspension geometry. While these units feature sealed dampers that cannot be rebuilt, they offer excellent value for street enthusiasts and entry-level competitors who want professional coilover performance at an accessible price.