H&R 29428-1 Street Performance Coilover Kit

The H&R 29428-1 Street Performance Coilover Kit delivers a precisely engineered suspension upgrade designed for street-driven vehicles. Built around a mono-tube gas shock construction, these coilovers provide superior damping control and stable performance characteristics across all driving conditions — a significant step up from traditional twin-tube shock designs.

Key Features:

• Mono-tube gas shock absorbers for precise handling response and consistent damping
• Fully threaded shock body for adjustable ride height — no inserts or sleeves
• Progressive-rate springs precision-wound to work in harmony with shock valving for a finely tuned suspension system
• Adjustable lowering range of approximately 1.25"–2.5" front and 0.75"–2.0" rear (varies by application)
• Better heat dissipation via true threaded shock body design compared to threaded-housing insert systems
• Lighter unsprung weight compared to twin-tube shock alternatives
• Adjustment wrenches included for convenient ride height changes
• 2-year warranty to the original purchaser when used within the specified adjustment range

H&R Street Performance Coilovers strike the ideal balance between everyday ride comfort and spirited driving dynamics. The progressive spring rate keeps the ride smooth over rough pavement while firming up predictably under hard cornering and braking. Professional installation and a post-installation wheel alignment are recommended.