H&R 29258-3 Street Performance Coilover Kit Mono-Tube Adjustable Lowering

The H&R 29258-3 Street Performance Coilover Kit delivers a premium suspension upgrade engineered specifically for street use. Unlike conventional twin-tube shock absorbers, H&R coilovers utilize a state-of-the-art mono-tube gas shock construction that provides superior damping response, reduced heat buildup, and more consistent performance under demanding driving conditions.

H&R is widely recognized as the originator of the true street coilover system and has continued to refine and lead the market with an extensive range of fitment-specific applications. Each unit is individually tuned with a progressive rate spring engineered from the ground up to complement the shock's internal valving — resulting in a cohesive, finely balanced suspension system rather than a collection of mismatched components.

The fully threaded shock body allows for precise ride height adjustment, giving drivers the flexibility to dial in their preferred stance and handling characteristics. Whether you're a daily commuter seeking improved cornering confidence or an enthusiast looking for a more aggressive setup, the H&R Street Performance Coilover Kit is a versatile solution built to satisfy both ends of the spectrum.

Key Features:

• Mono-tube gas shock construction for superior heat dissipation and consistent damping performance
• Fully threaded shock body allows for easy, tool-accessible ride height adjustment
• Progressive rate springs tuned in tandem with shock valving for optimal ride and handling balance
• Lowering range of approximately 1.0 to 2.5 inches on average (vehicle-specific)
• Engineered for street use — balances daily drivability with enhanced performance handling
• Fits a wide range of applications as part of H&R's extensive coilover lineup

H&R coilovers are manufactured to exacting standards and represent a direct upgrade path from factory suspension for drivers who demand more from their vehicle's chassis without sacrificing everyday comfort.