H&R 31051-1 Sport Cup Kit Performance Lowering Suspension System

The H&R 31051-1 Sport Cup Kit is a complete, application-specific spring and shock suspension system engineered to deliver more than 2.0 inches of lowering alongside improved handling and a performance street stance. Built on over 25 years of H&R suspension design experience, this kit goes well beyond generic "matched" spring and shock pairings by engineering the springs and dampers together as a unified system for each specific application.

Key Features:

• 2.0+ inches of lowering for a super-low, aggressive performance stance
• Application-specific engineering — springs and shocks are co-developed for precise calibration, eliminating the guesswork of mixing off-the-shelf components
• Progressive spring rate design retains superior ride comfort while delivering enhanced handling performance
• Lower center of gravity improves cornering response and overall vehicle dynamics over stock suspension
• Cohesive suspension package — outperforms and outlasts separately sourced spring and shock combinations
• Precision-engineered for improved handling, uncompromised ride comfort, and sleek styling in one complete kit

The Sport Cup Kit builds on all the benefits of H&R's Touring Cup Kit configuration with additional lowering and a more performance-oriented tune — ideal for the driving enthusiast who wants a more aggressive setup without sacrificing street drivability. Because the springs and shocks are designed and validated together, the system delivers consistent damping behavior matched to the specific spring rates, avoiding the under-dampened or mismatched feel common with mixed components.