QA1 Coilover Overhaul Kit 52613-D6002" to 4" without) and allow room for wider wheels and tires. These systems include double adjustable full coil over shocks so you can have ride height adjustability and change the valving to meet your specific needs. This version provides enhanced geometry by the new bolt in upper control arm mount, which reduces anti dive and ties in the upper shock mount. All QA1 shocks are 100% dyno tested and serialized. Coil over hardware and all required nuts,