All lowering spring designs are designed on an advance CAD program. State of the art design programs are crucial when designing linear and progressive rate springs to ensure laden and unladen spring rates are correct to provide the best possible ride comfort and handling.
SUP-9 is a new generation High Strength Performance Spring Steel which with-stands higher operating stresses and has superior resistance to sag, improved toughness and improved corrosion fatigue properties.
Dr. Nano lowering coil springs are ‘cold wound’ on most advanced 5-axis CNC coil winding machine.
Wounded coil is now dipped with a phosphate coating for maximum corrosion protection. A durable epoxy powdercoat finish provides extreme protection against the elements.
All Dr. Nano lowering coil springs are load tested and scragged 100% to eliminate subsequent spring sag, and ensure they meet and maintain the required specifications. We also perform spring fatigue and hardness testing using in-house state of the art testing equipment.
Engineered coil ends are designed to fit directly into the original vehicle mounting points without any modification.