H&R 28803-1 Street Performance Coilover Kit Monotube Height Adjustable

The H&R 28803-1 Street Performance Coilover Kit delivers a finely balanced suspension upgrade engineered specifically for street use. Unlike conventional twin-tube shock absorbers, these coilovers are built around a monotube gas shock design that provides faster, more precise damping response and improved thermal management under sustained driving conditions.

Hand-assembled in Germany by H&R Spezialfedern under rigid ISO 9001 and TÜV quality standards, each unit is blueprinted as a true coil-over system — not a modified shock body. Every shock is custom-valved to work in concert with a precision-engineered progressive rate spring, starting compliant over everyday road imperfections and firming up progressively under harder cornering, braking, or acceleration loads. The result is a suspension system that balances everyday comfort with genuine performance capability.

Key Features:

• Monotube gas shock construction for precise, responsive damping
• Fully threaded shock body allows adjustable ride height lowering of approximately 1.0" to 2.5" on average
• Progressive rate springs tuned to match each shock's specific valving
• Inverted shock design reduces unsprung weight for improved handling response
• Trapezoid-threaded shock body for virtually infinite ride height adjustment
• Zinc-phosphate coated shock tubes for corrosion resistance and a clean finish
• Hand-assembled in Germany; meets ISO 9001 and TÜV standards
• Compatible with stock strut and shock mounts for straightforward installation

By lowering the vehicle's center of gravity, these coilovers reduce body roll during hard cornering and improve overall balance. Whether you're fine-tuning for a subtle drop or a more aggressive stance, the fully threaded body provides the flexibility to dial in the exact ride height without compromising suspension geometry or daily drivability.