4000 Series Coil-Over Kit 2-5/8

The INTEGRA SHOCKS 4000 Series Coil-Over Kit 2-5/8 is a suspension upgrade solution designed for vehicles requiring adjustable ride height and performance damping. Coil-over kits combine a shock absorber and coil spring into a single, integrated assembly, allowing users to lower their vehicle, fine-tune spring rates, and improve handling dynamics. This aluminum-bodied kit is engineered for off-road enthusiasts, track builders, and street-performance applications where stock suspension geometry needs enhancement.

Built with a 2-5/8 inch ID (inner diameter) coil spring and paired with 4200 Series shock absorbers featuring a 2-inch bore diameter, this kit delivers controlled compression and rebound across varied terrain and load conditions. The black anodized aluminum construction resists corrosion while maintaining a lightweight profile—critical for minimizing unsprung weight and improving ride quality. The 4200 Series shocks are tuned to complement the spring rate, providing the damping force necessary to control both bump absorption and energy dissipation during articulation.

Installation is straightforward for users with basic suspension knowledge or access to qualified technicians familiar with coil-over platforms. The compact 5.85 x 2.2 x 5.9-inch footprint and 0.58-pound weight per unit make handling and positioning manageable during assembly. Verify vehicle-specific upper and lower control arm geometry before fitment to ensure proper alignment and suspension travel; compatibility varies by make, model, and year. This kit suits lifted trucks, lowered street cars, and tuned off-road platforms where adjustable suspension geometry provides tactical performance advantages.