H&R 29758-1 Street Performance Coilover Kit - Monotube Adjustable Height

The H&R 29758-1 Street Performance Coilover Kit is a complete, vehicle-specific suspension system engineered for drivers who demand both improved handling and daily-driving comfort. Unlike conventional twin-tube shock absorbers, these coilovers are built around a monotube gas shock design that delivers more precise damping response and better thermal performance under sustained use.

Designed, hand-assembled, and quality-tested in Germany under strict ISO 9001 and TÜV standards, every component in this kit is blueprinted as a true coilover system — not a modified stock shock body. Each damper is individually custom-valved to work in concert with H&R's precision-wound progressive rate springs, resulting in a balanced, finely tuned suspension that tightens progressively as cornering loads increase without sacrificing everyday ride quality.

The fully threaded shock body features a trapezoid-cut thread profile for durable, virtually infinite ride height adjustment. The threaded spring perch can be raised or lowered to fine-tune stance and handling balance, accommodating a lowering range of approximately 1.0" to 2.0" in front and 1.25" to 1.7" in the rear. Lowering the vehicle reduces its center of gravity, improving cornering stability and overall control.

Key Features:

• Monotube gas shock construction for precise, responsive handling
• Inverted strut design reduces unsprung weight for improved wheel control
• Trapezoid-threaded shock body for virtually infinite, easy-to-adjust ride height
• Progressive rate H&R springs custom-matched and valved to each shock
• Zinc-phosphate coated shock tubes for corrosion resistance and durability
• Lowering range: approximately 1.0"–2.0" front / 1.25"–1.7" rear
• Hand-assembled in Germany to ISO 9001 and TÜV standards
• Suitable for daily drivers through serious performance enthusiasts

H&R is widely recognized as the originator of the street coilover system and has led the market for decades with vehicle-specific engineered solutions. The 29758-1 represents that same commitment to quality — a complete suspension upgrade that delivers a lowered stance, reduced body roll, and confident handling without the harsh ride penalty of lesser systems.