H&R 31003-1 Sport Cup Kit - Lowering Spring & Shock System

The H&R 31003-1 Sport Cup Kit is a precision-engineered, application-specific spring and shock package designed for drivers who demand superior street performance combined with an aggressive lowered stance. Built on over 25 years of H&R suspension design expertise, this kit goes far beyond generic matched spring-and-shock pairings by engineering both components to work together as a cohesive system.

Key Features:

• Super-low stance — delivers more than 2.0 inches of lowering for a sleek, aggressive look
• Application-specific engineering — springs and shocks are purpose-designed and tuned together for this fitment
• Improved handling — reduced body roll and sharper response versus stock suspension
• Uncompromised ride comfort — street-engineered to remain compliant on daily-driven vehicles
• Outperforms mix-and-match setups — integrated design eliminates the guesswork and compatibility issues of separate off-the-shelf components
• 25+ years of H&R expertise — backed by decades of motorsport-proven suspension development

Because the springs and shocks in the H&R Sport Cup Kit are designed and validated together, the result is a suspension package that delivers a lower, more controlled ride height while maintaining the compliance needed for everyday street use — a level of refinement that mismatched components simply cannot replicate.