COIL OVER KIT 2.5IN ID 7Q SERIES

The QA1 Coil Over Kit 2.5IN ID 7Q Series is a complete coil-over suspension assembly engineered for vehicles requiring precision ride height adjustment and enhanced handling characteristics. Built around a 2.5-inch inner diameter spring and paired with a 2-inch shock absorber, this kit delivers the damping control and load support necessary for both street and off-road applications where adjustable suspension geometry is critical to performance.

The aluminum construction with black anodized finish resists corrosion while maintaining the structural integrity required for coil-over duty. The 6-inch sleeve accommodates the spring and shock assembly while providing the travel range needed for full suspension articulation. QA1's 7Q Series shocks are tuned specifically for coil-over applications, offering controlled compression and rebound damping to manage vehicle weight transfer during acceleration, braking, and cornering. This matched pairing ensures that spring rate and shock valving work in harmony rather than fighting each other—a critical distinction that separates engineered suspension kits from generic components.

This coil-over kit is designed for builders and owners installing aftermarket suspension systems where height adjustability, load capacity, and responsive handling are equally important. Whether supporting a lifted truck chassis, a performance street vehicle, or a specialized off-road platform, the 7Q Series delivers repeatable performance and allows fine-tuning of ride height without replacing the entire assembly. The compact footprint and modular design integrate into most suspension geometries where coil-over conversion is the preferred upgrade path.

QA1 has established itself as a manufacturer of purpose-built suspension components for the performance and restoration market. Their 7Q Series specifically addresses the demanding environment where dampening consistency and spring reliability must endure repeated high-load cycles without degradation. This kit represents a complete solution rather than individual components requiring compatibility verification.