H&R 29580-1 Street Performance Coilover System

The H&R 29580-1 Street Performance Coilovers deliver a refined balance of everyday comfort and spirited handling, making them an ideal upgrade for enthusiasts who demand more from their suspension without sacrificing daily drivability. H&R is widely recognized as the originator of the true coilover system for street use, and this kit reflects decades of suspension engineering expertise.

Unlike conventional twin-tube shock absorbers, these coilovers are built around a mono-tube gas shock design, which provides more consistent damping performance, better heat dissipation, and superior response compared to traditional units. Each shock is precisely valved to work in harmony with its matched progressive-rate spring, resulting in a cohesive, finely tuned suspension system rather than a collection of mismatched components.

The fully threaded shock body allows for easy, tool-accessible ride height adjustment, letting drivers dial in their desired stance and handling characteristics without compromising ride quality. With an average lowering range of 1.0 to 2.5 inches, these coilovers lower the vehicle's center of gravity for improved cornering response and a more aggressive appearance.

Key Features:

• Mono-tube gas shock construction for consistent, high-performance damping
• Progressive-rate springs engineered specifically to complement shock valving
• Fully threaded shock body for precise, adjustable ride height
• Average lowering range of 1.0 to 2.5 inches for improved stance and handling
• Engineered for street use — suitable for daily drivers and performance enthusiasts alike
• Designed and tuned by H&R suspension engineers

H&R coilovers are a complete suspension solution built to outperform OEM components in both comfort and capability, whether navigating daily commutes or spirited back-road drives.