King 2.0 Piggy Back Coilovers come pre-tuned from AccuTune Off-Road. Every 2.0 King Coilover is tuned using our own engineering equations to provide the best performance for your vehicle and your terrain. Piggyback 2.0 King Coilovers are a huge improvement over separate shocks and springs because they allow for dual rate springs with better bottoming control, and longer travel. Adding a Piggyback Reservoir to your 2.0 King Coilovers increases heat dissipation, ride quality, and damping consistency. Step-up to Pre-Tuned King 2.0 Piggy Back Coilovers from AccuTune Off-Road.