H&R 50889-3 Street Performance Coilover Kit

The H&R 50889-3 Street Performance Coilover Kit is a complete, height-adjustable suspension system engineered for street use. Unlike entry-level coilover kits that rely on twin-tube shock designs, H&R's Street Performance coilovers utilize a mono-tube gas shock construction — a lighter, more responsive design that delivers stable damping characteristics across all driving conditions and helps minimize unsprung weight.

Each shock is built around H&R's exclusive dynamic damper technology, pairing application-specific valving with a precision-matched progressive rate spring. This integration creates a finely tuned suspension system that stays compliant over rough roads while firming up predictably under hard cornering or braking. The result is an ideal balance of everyday comfort and genuine performance handling — without the harshness of a track-only setup.

The fully threaded shock body — a true threaded damper body, not a threaded sleeve over an insert — allows for easy, precise ride height adjustment via spring seat collars. This design also promotes better heat dissipation under sustained use. Height is adjusted seasonally or to personal preference, with an average lowering range of 1.2 to 2.5 inches in the front and 1.2 to 2.2 inches in the rear, depending on fitment and configuration.

H&R Street Performance Coilovers are manufactured in Germany and are suited for drivers who want to eliminate factory wheel gap, improve cornering response, reduce body roll, and achieve a more aggressive stance — all without sacrificing daily drivability.

Key Features:

• Mono-tube gas shock construction — lighter than twin-tube designs; provides consistent, stable damping in all conditions
• True threaded shock body — allows adjustable ride height and improves heat dissipation vs. threaded-sleeve designs
• Progressive rate springs — engineered specifically to complement each shock's valving for a seamless, balanced suspension system
• Height adjustable — approximately 1.2–2.5 inches of lowering range (front); 1.2–2.2 inches (rear)
• Preset damping — vehicle-specifically tuned; no external damping adjustment required
• Made in Germany — built to H&R's precision engineering and quality standards
• Reduces body roll and improves cornering stability
• Suitable for daily drivers through performance-oriented street use

Cross-reference part numbers: 508893, HR50889-3, HR508893.