H&R 29990-4 Street Performance Coilover Kit Monotube Adjustable Lowering Suspension

The H&R 29990-4 Street Performance Coilover Kit delivers a precisely engineered suspension upgrade for drivers who demand improved handling without sacrificing everyday ride comfort. Built around a high-quality mono-tube gas shock absorber design, this coilover system offers more responsive damping and superior heat dissipation compared to conventional twin-tube units, making it equally at home on daily commutes and spirited driving.

Each coilover shock is custom-tuned to work in harmony with a precision-engineered progressive rate spring, creating a cohesive, finely balanced suspension system from the ground up. The fully threaded shock body — a true coilover design, not an imitation sleeve-over — allows you to precisely dial in your preferred ride height, optimizing weight distribution and lowering the center of gravity for sharper handling and improved cornering stability.

Key Features:

• Mono-tube gas shock construction for precise, responsive handling
• Front ride height adjustable 1.6" – 2.5" lower than stock
• Rear ride height adjustable 1.3" – 2.0" lower than stock
• Fully threaded shock body for virtually infinite height adjustment
• Progressive rate springs engineered specifically to match shock valving
• Fixed damping tuned for street performance and ride comfort balance
• Trapezoidal threaded shock body resists seizing even after extended use
• Designed and manufactured in Germany to ISO 9001 and German TÜV quality standards
• Hook/spanner wrench included for height adjustment

H&R Street Performance coilovers are the ideal solution for drivers ranging from daily commuters to serious enthusiasts who want a lowered, aggressive stance with improved suspension dynamics. Every kit is application-specific and built to H&R's exacting German engineering standards, ensuring a perfect fit and optimal performance right out of the box.