Progress Technology 77.0101.3535 Coilover Spring and Shock Assembly

The Progress Technology Coilovers Series II (CS2) delivers adjustable suspension performance at an accessible price point. Designed for entry-level racers and street enthusiasts seeking improved handling and stance without the premium cost, this twin-tube coilover system combines proven engineering with value-focused construction.

Key Features:

• Twin tube damper design for balanced performance and comfort
• Sealed damper construction for maintenance-free operation
• 2.50-inch inner diameter race springs for optimal load capacity
• Height-adjustable platform for customizable ride height and handling
• Street Sport valving tuned for daily driving with spirited performance

The Progress CS2 Coilovers provide the foundational benefits of coilover suspension—adjustable height, improved corner weight distribution, and enhanced handling response—in a sealed, non-rebuildable package that reduces initial cost. The twin-tube construction delivers a compliant ride quality suitable for street use while maintaining the control needed for enthusiastic driving and entry-level motorsports applications.